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<!--Date of creation: 08-14-2023-->
<!--Software architectural design and coding: A'c Dharmapremananda Avt.-->
<!--Copyright (c) 2023 I-NET Business Solutions, Inc. All Rights Reserved.-->
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:to="us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_lbl_37230f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_lbl_37230f" xml:lang="en-US">Equity securities, at fair value (cost of $17,986,783 at June 30, 2023 and $18,086,700 at December 31, 2022)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherInvestments" xlink:label="us-gaap_OtherInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherInvestments" xlink:to="us-gaap_OtherInvestments_lbl_34f8cf" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherInvestments_lbl_34f8cf" xml:lang="en-US">Other investments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Investments" xlink:to="us-gaap_Investments_lbl_a84cff" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Investments_lbl_a84cff" xml:lang="en-US">Total investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Investments" xlink:label="us-gaap_Investments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Investments" xlink:to="us-gaap_Investments_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Investments_lbl_7" xml:lang="en-US">[Investments]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl_2fc705" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl_2fc705" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PremiumsReceivableAtCarryingValue" xlink:label="us-gaap_PremiumsReceivableAtCarryingValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsReceivableAtCarryingValue" xlink:to="us-gaap_PremiumsReceivableAtCarryingValue_lbl_e19c30" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsReceivableAtCarryingValue_lbl_e19c30" xml:lang="en-US">Premiums receivable, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReinsuranceRecoverables" xlink:label="us-gaap_ReinsuranceRecoverables" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceRecoverables" xlink:to="us-gaap_ReinsuranceRecoverables_lbl_f89823" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceRecoverables_lbl_f89823" xml:lang="en-US">Reinsurance receivables, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredPolicyAcquisitionCosts" xlink:label="us-gaap_DeferredPolicyAcquisitionCosts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredPolicyAcquisitionCosts" xlink:to="us-gaap_DeferredPolicyAcquisitionCosts_lbl_e4103f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredPolicyAcquisitionCosts_lbl_e4103f" xml:lang="en-US">Deferred policy acquisition costs</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill" xlink:label="us-gaap_IntangibleAssetsNetIncludingGoodwill" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetIncludingGoodwill" xlink:to="us-gaap_IntangibleAssetsNetIncludingGoodwill_lbl_cc3d33" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsNetIncludingGoodwill_lbl_cc3d33" xml:lang="en-US">Intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl_567878" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl_567878" xml:lang="en-US">Property and equipment, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxAssetsNet" xlink:to="us-gaap_DeferredIncomeTaxAssetsNet_lbl_7776db" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl_7776db" xml:lang="en-US">Deferred income taxes, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssets" xlink:label="us-gaap_OtherAssets" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssets" xlink:to="us-gaap_OtherAssets_lbl_45873f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssets_lbl_45873f" xml:lang="en-US">Other assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl_9b1c11" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl_9b1c11" xml:lang="en-US">Total assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl_16" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_lbl_16" xml:lang="en-US">[Assets]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAbstract" xlink:label="us-gaap_LiabilitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAbstract" xlink:to="us-gaap_LiabilitiesAbstract_lbl_035acc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAbstract_lbl_035acc" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense" xlink:label="us-gaap_LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense" xlink:to="us-gaap_LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense_lbl_838b6a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense_lbl_838b6a" xml:lang="en-US">Loss and loss adjustment expense reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnearnedPremiums" xlink:label="us-gaap_UnearnedPremiums" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnearnedPremiums" xlink:to="us-gaap_UnearnedPremiums_lbl_df4f25" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnearnedPremiums_lbl_df4f25" xml:lang="en-US">Unearned premiums</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AdvancePremiums" xlink:label="king_AdvancePremiums" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AdvancePremiums" xlink:to="king_AdvancePremiums_lbl_ee3acc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AdvancePremiums_lbl_ee3acc" xml:lang="en-US">Advance premiums</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReinsurancePayable" xlink:label="us-gaap_ReinsurancePayable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsurancePayable" xlink:to="us-gaap_ReinsurancePayable_lbl_29e563" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsurancePayable_lbl_29e563" xml:lang="en-US">Reinsurance balances payable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredRevenue" xlink:label="us-gaap_DeferredRevenue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenue" xlink:to="us-gaap_DeferredRevenue_lbl_0f0aea" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredRevenue_lbl_0f0aea" xml:lang="en-US">Deferred ceding commission revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl_7d8cc2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl_7d8cc2" xml:lang="en-US">Accounts payable, accrued expenses and other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt_lbl_dbdebd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebt_lbl_dbdebd" xml:lang="en-US">Debt, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl_df27f5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl_df27f5" xml:lang="en-US">Total liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl_25" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl_25" xml:lang="en-US">[Liabilities]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl_84e593" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityAbstract_lbl_84e593" xml:lang="en-US">Stockholders' Equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl_c1038b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockValue_lbl_c1038b" xml:lang="en-US">Preferred stock, $.01 par value; authorized 2,500,000 shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl_4fe0b0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockValue_lbl_4fe0b0" xml:lang="en-US">Common stock, $.01 par value; authorized 20,000,000 shares; issued 12,227,562 shares at June 30, 2023 and 12,171,512 shares at December 31, 2022; outstanding 10,756,156 shares at June 30, 2023 and 10,700,106 shares at December 31, 2022</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ExcessCapital" xlink:label="us-gaap_ExcessCapital" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExcessCapital" xlink:to="us-gaap_ExcessCapital_lbl_cd6a77" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExcessCapital_lbl_cd6a77" xml:lang="en-US">Capital in excess of par</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl_0e49ff" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl_0e49ff" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl_30" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl_30" xml:lang="en-US">[Accumulated Other Comprehensive Income (Loss), Net of Tax]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_lbl_516971" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl_516971" xml:lang="en-US">Accumulated deficit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityBeforeTreasuryStock" xlink:to="us-gaap_StockholdersEquityBeforeTreasuryStock_lbl_7e746c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquityBeforeTreasuryStock_lbl_7e746c" xml:lang="en-US">Stockholders' Equity before Treasury Stock</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityBeforeTreasuryStock" xlink:label="us-gaap_StockholdersEquityBeforeTreasuryStock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityBeforeTreasuryStock" xlink:to="us-gaap_StockholdersEquityBeforeTreasuryStock_lbl_32" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityBeforeTreasuryStock_lbl_32" xml:lang="en-US">[Stockholders' Equity before Treasury Stock]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValue" xlink:to="us-gaap_TreasuryStockValue_lbl_7b78d0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_TreasuryStockValue_lbl_7b78d0" xml:lang="en-US">Treasury stock, at cost, 1,471,406 shares at June 30, 2023 and December 31, 2022</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValue" xlink:label="us-gaap_TreasuryStockValue" />
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl_bb3189" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquity_lbl_bb3189" xml:lang="en-US">Total stockholders' equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl_34" xlink:type="arc" />
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl_2efbfe" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl_2efbfe" xml:lang="en-US">Total liabilities and stockholders' equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl_35" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl_35" xml:lang="en-US">[Liabilities and Equity]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl_ade36a" xml:lang="en-US">Fixed-maturity securities, held-to-maturity, at amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesFairValue_lbl_fe902d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl_fe902d" xml:lang="en-US">Fixed-maturity securities, available-for-sale, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_EquitySecuritiesAtFairValue" xlink:label="king_EquitySecuritiesAtFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_EquitySecuritiesAtFairValue" xlink:to="king_EquitySecuritiesAtFairValue_lbl_75a414" xlink:type="arc" />
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl_00e9b4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockholdersEquityAbstract_lbl_00e9b4" xml:lang="en-US">Stockholders' Equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl_b9c817" xml:lang="en-US">Preferred Stock, Par Value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl_fc7bcd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl_fc7bcd" xml:lang="en-US">Preferred Stock, Authorized Shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl_dbdb3c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl_dbdb3c" xml:lang="en-US">Common Stock, Par Value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl_097abc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl_097abc" xml:lang="en-US">Common Stock, Authorized Shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued" xlink:label="us-gaap_CommonStockSharesIssued" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl_261efb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesIssued_lbl_261efb" xml:lang="en-US">Common Stock, Issued Shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl_a04eb9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl_a04eb9" xml:lang="en-US">Common Stock, Outstanding Shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonShares" xlink:label="us-gaap_TreasuryStockCommonShares" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockCommonShares" xlink:to="us-gaap_TreasuryStockCommonShares_lbl_be69cc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockCommonShares_lbl_be69cc" xml:lang="en-US">Treasury Stock, Shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl_385354" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenuesAbstract" xlink:label="us-gaap_RevenuesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_RevenuesAbstract_lbl_95aa16" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenuesAbstract_lbl_95aa16" xml:lang="en-US">Revenues</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PremiumsEarnedNet" xlink:label="us-gaap_PremiumsEarnedNet" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsEarnedNet_lbl_943ae8" xml:lang="en-US">Net premiums earned</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RevenueFromCedingCommission" xlink:label="king_RevenueFromCedingCommission" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RevenueFromCedingCommission" xlink:to="king_RevenueFromCedingCommission_lbl_a3b850" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetInvestmentIncome" xlink:label="us-gaap_NetInvestmentIncome" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetInvestmentIncome" xlink:to="us-gaap_NetInvestmentIncome_lbl_2abe04" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetInvestmentIncome_lbl_2abe04" xml:lang="en-US">Net investment income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RealizedInvestmentGainsLosses" xlink:label="us-gaap_RealizedInvestmentGainsLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RealizedInvestmentGainsLosses" xlink:to="us-gaap_RealizedInvestmentGainsLosses_lbl_271f30" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl_271f30" xml:lang="en-US">Net gains (losses) on investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIncome" xlink:label="us-gaap_OtherIncome" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncome" xlink:to="us-gaap_OtherIncome_lbl_53ac13" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncome_lbl_53ac13" xml:lang="en-US">Other income</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl_e4c553" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Revenues_lbl_e4c553" xml:lang="en-US">Total revenues</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl_8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Revenues_lbl_8" xml:lang="en-US">[Revenues]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl_0b2689" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl_0b2689" xml:lang="en-US">Expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LossAndLossAdjustmentExpenses" xlink:label="king_LossAndLossAdjustmentExpenses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LossAndLossAdjustmentExpenses" xlink:to="king_LossAndLossAdjustmentExpenses_lbl_7c156f" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoninterestExpenseCommissionExpense" xlink:label="us-gaap_NoninterestExpenseCommissionExpense" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoninterestExpenseCommissionExpense" xlink:to="us-gaap_NoninterestExpenseCommissionExpense_lbl_a4bba8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoninterestExpenseCommissionExpense_lbl_a4bba8" xml:lang="en-US">Commission expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherUnderwritingExpense" xlink:label="us-gaap_OtherUnderwritingExpense" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationAndAmortization_lbl_14b913" xml:lang="en-US">Depreciation and amortization</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_lbl_1bbaf9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpense_lbl_1bbaf9" xml:lang="en-US">Interest expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl_11b2e5" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl_23" xml:lang="en-US">[Unrealized Gain (Loss) on Investments]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncomeTaxBenefitRelatedToItemsOfOtherComprehensiveLoss" xlink:label="king_IncomeTaxBenefitRelatedToItemsOfOtherComprehensiveLoss" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl_25" xml:lang="en-US">[Other Comprehensive Income (Loss), Net of Tax]</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl_f8340f" xml:lang="en-US">Comprehensive loss</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl_16fa2e" xml:lang="en-US">Basic</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl_31" xml:lang="en-US">[Weighted Average Number of Shares Outstanding, Basic]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember_lbl_7b13c2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsMember_lbl_7b13c2" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssued" xlink:to="us-gaap_SharesIssued_lbl_e9203a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_SharesIssued_lbl_e9203a" xml:lang="en-US">Balance, shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssued" xlink:label="us-gaap_SharesIssued" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssued" xlink:to="us-gaap_SharesIssued_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharesIssued_lbl_2" xml:lang="en-US">[Shares, Issued]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl_7bb1f7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquity_lbl_7bb1f7" xml:lang="en-US">Balance, amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl_081a4b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensation_lbl_081a4b" xml:lang="en-US">Stock-based compensation</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_VestingOfRestrictedStockAwardsShares" xlink:label="king_VestingOfRestrictedStockAwardsShares" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_VestingOfRestrictedStockAwardsShares" xlink:to="king_VestingOfRestrictedStockAwardsShares_lbl_e91aea" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_VestingOfRestrictedStockAwardsShares_lbl_e91aea" xml:lang="en-US">Vesting of restricted stock awards, shares</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_VestingOfRestrictedStockAwardsAmount" xlink:label="king_VestingOfRestrictedStockAwardsAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_VestingOfRestrictedStockAwardsAmount" xlink:to="king_VestingOfRestrictedStockAwardsAmount_lbl_11f07e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_VestingOfRestrictedStockAwardsAmount_lbl_11f07e" xml:lang="en-US">Vesting of restricted stock awards, amount</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesShares" xlink:label="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesShares" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesShares" xlink:to="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesShares_lbl_1d23e5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesShares_lbl_1d23e5" xml:lang="en-US">Shares deducted from restricted stock awards for payment of withholding taxes, shares</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesAmount" xlink:label="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesAmount" xlink:to="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesAmount_lbl_f0ec72" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SharesDeductedFromRestrictedStockAwardsForPaymentOfWithholdingTaxesAmount_lbl_f0ec72" xml:lang="en-US">Shares deducted from restricted stock awards for payment of withholding taxes, amount</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_Dividend" xlink:label="king_Dividend" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_Dividend" xlink:to="king_Dividend_lbl_f722c1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_Dividend_lbl_f722c1" xml:lang="en-US">Dividends</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl_f8214e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl_f8214e" xml:lang="en-US">Net loss</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ChangeInUnrealizedLossesOnAvailableForSaleSecuritiesNetOfTax" xlink:label="king_ChangeInUnrealizedLossesOnAvailableForSaleSecuritiesNetOfTax" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ChangeInUnrealizedLossesOnAvailableForSaleSecuritiesNetOfTax" xlink:to="king_ChangeInUnrealizedLossesOnAvailableForSaleSecuritiesNetOfTax_lbl_4f7f3c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ChangeInUnrealizedLossesOnAvailableForSaleSecuritiesNetOfTax_lbl_4f7f3c" xml:lang="en-US">Change in unrealized losses on available-for-sale securities, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ChangeInUnrealizedGainsOnAvailableForSaleSecuritiesNetOfTax" xlink:label="king_ChangeInUnrealizedGainsOnAvailableForSaleSecuritiesNetOfTax" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ChangeInUnrealizedGainsOnAvailableForSaleSecuritiesNetOfTax" xlink:to="king_ChangeInUnrealizedGainsOnAvailableForSaleSecuritiesNetOfTax_lbl_0036b0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ChangeInUnrealizedGainsOnAvailableForSaleSecuritiesNetOfTax_lbl_0036b0" xml:lang="en-US">Change in unrealized gains on available-for-sale securities, net of tax</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssued" xlink:to="us-gaap_SharesIssued_lbl_259b7d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_SharesIssued_lbl_259b7d" xml:lang="en-US">Balance, shares</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl_86fde8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_StockholdersEquity_lbl_86fde8" xml:lang="en-US">Balance, amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl_beb7f4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl_beb7f4" xml:lang="en-US">Condensed Consolidated Statements of Cash Flows (Unaudited)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl_5d61ee" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl_5d61ee" xml:lang="en-US">Cash flows from operating activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_lbl_b44e5c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProfitLoss_lbl_b44e5c" xml:lang="en-US">Net loss</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss" xlink:label="us-gaap_ProfitLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProfitLoss_lbl_3" xml:lang="en-US">[Net Income (Loss), Including Portion Attributable to Noncontrolling Interest]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl_105c99" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl_105c99" xml:lang="en-US">Adjustments to reconcile net loss to net cash flows used in operating activities:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossOnSaleOfInvestments" xlink:label="us-gaap_LossOnSaleOfInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossOnSaleOfInvestments" xlink:to="us-gaap_LossOnSaleOfInvestments_lbl_82708f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LossOnSaleOfInvestments_lbl_82708f" xml:lang="en-US">Net losses on investments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetUnrealizedGainsLossesOnEquityInvestments" xlink:to="king_NetUnrealizedGainsLossesOnEquityInvestments_lbl_e3817b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="king_NetUnrealizedGainsLossesOnEquityInvestments_lbl_e3817b" xml:lang="en-US">Net unrealized (gains) losses on equity investments</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetUnrealizedGainsLossesOnEquityInvestments" xlink:label="king_NetUnrealizedGainsLossesOnEquityInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetUnrealizedGainsLossesOnEquityInvestments" xlink:to="king_NetUnrealizedGainsLossesOnEquityInvestments_lbl_6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetUnrealizedGainsLossesOnEquityInvestments_lbl_6" xml:lang="en-US">[Net unrealized (gains) losses on equity investments]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfOtherInvestments" xlink:to="us-gaap_GainLossOnSaleOfOtherInvestments_lbl_1afc8a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_GainLossOnSaleOfOtherInvestments_lbl_1afc8a" xml:lang="en-US">Net unrealized (gains) losses on other investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnSaleOfOtherInvestments" xlink:label="us-gaap_GainLossOnSaleOfOtherInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfOtherInvestments" xlink:to="us-gaap_GainLossOnSaleOfOtherInvestments_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnSaleOfOtherInvestments_lbl_7" xml:lang="en-US">[Gain (Loss) on Sale of Other Investments]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortization" xlink:to="us-gaap_DepreciationAndAmortization_lbl_6e751d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DepreciationAndAmortization_lbl_6e751d" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="us-gaap_ProvisionForDoubtfulAccounts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProvisionForDoubtfulAccounts" xlink:to="us-gaap_ProvisionForDoubtfulAccounts_lbl_d41858" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl_d41858" xml:lang="en-US">Bad debt expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfDebtDiscountPremium" xlink:to="us-gaap_AmortizationOfDebtDiscountPremium_lbl_f531b2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl_f531b2" xml:lang="en-US">Amortization of bond premium, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl_f26427" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl_f26427" xml:lang="en-US">Amortization of discount and issuance costs on debt</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl_26fc40" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensation_lbl_26fc40" xml:lang="en-US">Stock-based compensation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl_b37df2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl_b37df2" xml:lang="en-US">Deferred income tax benefit</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOperatingAssetsAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingAssetsAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingAssetsAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_lbl_f5d4bd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_lbl_f5d4bd" xml:lang="en-US">Decrease (increase) in operating assets:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPremiumsReceivable" xlink:to="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl_8b809e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl_8b809e" xml:lang="en-US">Premiums receivable, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInPremiumsReceivable" xlink:label="us-gaap_IncreaseDecreaseInPremiumsReceivable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPremiumsReceivable" xlink:to="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl_15" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl_15" xml:lang="en-US">[Increase (Decrease) in Premiums Receivable]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInReinsuranceRecoverable" xlink:to="us-gaap_IncreaseDecreaseInReinsuranceRecoverable_lbl_dc8473" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInReinsuranceRecoverable_lbl_dc8473" xml:lang="en-US">Reinsurance receivables, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInReinsuranceRecoverable" xlink:label="us-gaap_IncreaseDecreaseInReinsuranceRecoverable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInReinsuranceRecoverable" xlink:to="us-gaap_IncreaseDecreaseInReinsuranceRecoverable_lbl_16" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInReinsuranceRecoverable_lbl_16" xml:lang="en-US">[Increase (Decrease) in Reinsurance Recoverable]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts" xlink:to="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts_lbl_9dade9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts_lbl_9dade9" xml:lang="en-US">Deferred policy acquisition costs</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts" xlink:label="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts" xlink:to="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts_lbl_17" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts_lbl_17" xml:lang="en-US">[Increase (Decrease) in Deferred Policy Acquisition Costs]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl_b68bab" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl_b68bab" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl_18" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl_18" xml:lang="en-US">[Increase (Decrease) in Other Operating Assets]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl_c2ce86" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl_c2ce86" xml:lang="en-US">Increase (decrease) in operating liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves" xlink:to="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves_lbl_b46266" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves_lbl_b46266" xml:lang="en-US">Loss and loss adjustment expense reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves" xlink:label="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves" xlink:to="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves_lbl_20" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInFuturePolicyBenefitReserves_lbl_20" xml:lang="en-US">[Increase (Decrease) in Future Policy Benefit Reserves]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInUnearnedPremiums" xlink:to="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl_daf495" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl_daf495" xml:lang="en-US">Unearned premiums</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInUnearnedPremiums" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInUnearnedPremiums" xlink:to="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl_21" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl_21" xml:lang="en-US">[Increase (Decrease) in Unearned Premiums]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncreseDecreseInAdvancePremiums" xlink:to="king_IncreseDecreseInAdvancePremiums_lbl_164203" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_IncreseDecreseInAdvancePremiums_lbl_164203" xml:lang="en-US">Advance premiums</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncreseDecreseInAdvancePremiums" xlink:label="king_IncreseDecreseInAdvancePremiums" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncreseDecreseInAdvancePremiums" xlink:to="king_IncreseDecreseInAdvancePremiums_lbl_22" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncreseDecreseInAdvancePremiums_lbl_22" xml:lang="en-US">[Advance premiums]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInReinsurancePayables" xlink:to="us-gaap_IncreaseDecreaseInReinsurancePayables_lbl_cbc347" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInReinsurancePayables_lbl_cbc347" xml:lang="en-US">Reinsurance balances payable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInReinsurancePayables" xlink:label="us-gaap_IncreaseDecreaseInReinsurancePayables" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInReinsurancePayables" xlink:to="us-gaap_IncreaseDecreaseInReinsurancePayables_lbl_23" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInReinsurancePayables_lbl_23" xml:lang="en-US">[Increase (Decrease) in Reinsurance Payables]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl_53220d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl_53220d" xml:lang="en-US">Deferred ceding commission revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl_24" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl_24" xml:lang="en-US">[Increase (Decrease) in Deferred Revenue]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl_186b0c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl_186b0c" xml:lang="en-US">Accounts payable, accrued expenses and other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl_25" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl_25" xml:lang="en-US">[Increase (Decrease) in Accounts Payable and Accrued Liabilities]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl_18edf0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl_18edf0" xml:lang="en-US">Net cash flows used in operating activities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl_26" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl_26" xml:lang="en-US">[Net Cash Provided by (Used in) Operating Activities]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl_728ce8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl_728ce8" xml:lang="en-US">Cash flows from investing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PurchaseFixedMaturitySecuritiesHeldToMaturity" xlink:to="king_PurchaseFixedMaturitySecuritiesHeldToMaturity_lbl_287621" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="king_PurchaseFixedMaturitySecuritiesHeldToMaturity_lbl_287621" xml:lang="en-US">Purchase - fixed-maturity securities held-to-maturity</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PurchaseFixedMaturitySecuritiesHeldToMaturity" xlink:label="king_PurchaseFixedMaturitySecuritiesHeldToMaturity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PurchaseFixedMaturitySecuritiesHeldToMaturity" xlink:to="king_PurchaseFixedMaturitySecuritiesHeldToMaturity_lbl_28" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PurchaseFixedMaturitySecuritiesHeldToMaturity_lbl_28" xml:lang="en-US">[Purchase - fixed-maturity securities held-to-maturity]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PurchaseFixedMaturitySecuritiesAvailableForSale" xlink:to="king_PurchaseFixedMaturitySecuritiesAvailableForSale_lbl_864f06" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="king_PurchaseFixedMaturitySecuritiesAvailableForSale_lbl_864f06" xml:lang="en-US">Purchase - fixed-maturity securities available-for-sale</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PurchaseFixedMaturitySecuritiesAvailableForSale" xlink:label="king_PurchaseFixedMaturitySecuritiesAvailableForSale" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PurchaseFixedMaturitySecuritiesAvailableForSale" xlink:to="king_PurchaseFixedMaturitySecuritiesAvailableForSale_lbl_29" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PurchaseFixedMaturitySecuritiesAvailableForSale_lbl_29" xml:lang="en-US">[Purchase - fixed-maturity securities available-for-sale]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi" xlink:to="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl_50acc8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl_50acc8" xml:lang="en-US">Purchase - equity securities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireEquitySecuritiesFvNi" xlink:label="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi" xlink:to="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl_30" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl_30" xml:lang="en-US">[Payments to Acquire Equity Securities, FV-NI]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities" xlink:label="us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities" xlink:to="us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities_lbl_62bbd5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities_lbl_62bbd5" xml:lang="en-US">Redemption - fixed-maturity securities held-to-maturity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_lbl_7cb83e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_lbl_7cb83e" xml:lang="en-US">Sale and maturity - fixed-maturity securities available-for-sale</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi" xlink:label="us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi" xlink:to="us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi_lbl_4cf2eb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi_lbl_4cf2eb" xml:lang="en-US">Sale - equity securities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl_2a96f1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl_2a96f1" xml:lang="en-US">Acquisition of property and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl_34" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl_34" xml:lang="en-US">[Payments to Acquire Property, Plant, and Equipment]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl_87760b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl_87760b" xml:lang="en-US">Net cash flows provided by investing activities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl_35" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl_35" xml:lang="en-US">[Net Cash Provided by (Used in) Investing Activities]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl_16f80a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl_16f80a" xml:lang="en-US">Cash flows from financing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeasePrincipalPayments" xlink:to="us-gaap_FinanceLeasePrincipalPayments_lbl_58da84" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FinanceLeasePrincipalPayments_lbl_58da84" xml:lang="en-US">Principal payments on equipment financing</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeasePrincipalPayments" xlink:label="us-gaap_FinanceLeasePrincipalPayments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeasePrincipalPayments" xlink:to="us-gaap_FinanceLeasePrincipalPayments_lbl_37" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeasePrincipalPayments_lbl_37" xml:lang="en-US">[Finance Lease, Principal Payments]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_BondIssueCostsOn2022Notes" xlink:label="king_BondIssueCostsOn2022Notes" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_BondIssueCostsOn2022Notes" xlink:to="king_BondIssueCostsOn2022Notes_lbl_4926fc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_BondIssueCostsOn2022Notes_lbl_4926fc" xml:lang="en-US">Issue costs on 2022 Notes</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards" xlink:to="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards_lbl_d7b4cc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards_lbl_d7b4cc" xml:lang="en-US">Withholding taxes paid on vested restricted stock awards</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WithholdingTaxesPaidOnVestedRestrictedStockAwards" xlink:label="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards" xlink:to="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards_lbl_39" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WithholdingTaxesPaidOnVestedRestrictedStockAwards_lbl_39" xml:lang="en-US">[Withholding taxes paid on vested restricted stock awards]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfDividends" xlink:to="us-gaap_PaymentsOfDividends_lbl_89fc56" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsOfDividends_lbl_89fc56" xml:lang="en-US">Dividends paid</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDividends" xlink:label="us-gaap_PaymentsOfDividends" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfDividends" xlink:to="us-gaap_PaymentsOfDividends_lbl_40" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsOfDividends_lbl_40" xml:lang="en-US">[Payments of Dividends]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl_f6d3ae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl_f6d3ae" xml:lang="en-US">Net cash flows used in financing activities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl_41" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl_41" xml:lang="en-US">[Net Cash Provided by (Used in) Financing Activities]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl_347b8c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl_347b8c" xml:lang="en-US">Increase (decrease) in cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl_42" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl_42" xml:lang="en-US">[Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_24e02a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_24e02a" xml:lang="en-US">Cash and cash equivalents, beginning of period</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_43" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_43" xml:lang="en-US">[Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_96f7d5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_96f7d5" xml:lang="en-US">Cash and cash equivalents, end of period</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl_8aacad" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl_8aacad" xml:lang="en-US">Supplemental disclosures of cash flow information:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="us-gaap_IncomeTaxesPaidNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaidNet" xlink:to="us-gaap_IncomeTaxesPaidNet_lbl_973774" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl_973774" xml:lang="en-US">Cash paid for income taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl_02199a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidNet_lbl_02199a" xml:lang="en-US">Cash paid for interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl_3414ec" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl_3414ec" xml:lang="en-US">Supplemental schedule of non-cash investing and financing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl_a027e0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl_a027e0" xml:lang="en-US">Other comprehensive income (loss), net of tax</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NatureOfBusinessAndBasisOfPresentationabstract" xlink:label="king_NatureOfBusinessAndBasisOfPresentationabstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NatureOfBusinessAndBasisOfPresentationabstract" xlink:to="king_NatureOfBusinessAndBasisOfPresentationabstract_lbl_422589" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NatureOfBusinessAndBasisOfPresentationabstract_lbl_422589" xml:lang="en-US">Nature of Business and Basis of Presentation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:to="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl_905354" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl_905354" xml:lang="en-US">Nature of Business and Basis of Presentation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:to="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl_2" xml:lang="en-US">Business Description and Basis of Presentation [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract_lbl_347312" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl_347312" xml:lang="en-US">Accounting Policies</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock_lbl_5811ad" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl_5811ad" xml:lang="en-US">Accounting Policies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl_2" xml:lang="en-US">Significant Accounting Policies [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsAbstract" xlink:label="us-gaap_InvestmentsAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentsAbstract" xlink:to="us-gaap_InvestmentsAbstract_lbl_c2c2a3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentsAbstract_lbl_c2c2a3" xml:lang="en-US">Investments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTextBlock" xlink:to="us-gaap_InvestmentTextBlock_lbl_c089e8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InvestmentTextBlock_lbl_c089e8" xml:lang="en-US">Investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTextBlock" xlink:label="us-gaap_InvestmentTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTextBlock" xlink:to="us-gaap_InvestmentTextBlock_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentTextBlock_lbl_2" xml:lang="en-US">Investment [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="us-gaap_FairValueDisclosuresAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueDisclosuresAbstract_lbl_4b2887" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl_4b2887" xml:lang="en-US">Fair Value Measurements</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresTextBlock" xlink:to="us-gaap_FairValueDisclosuresTextBlock_lbl_e6f7da" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl_e6f7da" xml:lang="en-US">Fair Value Measurements</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="us-gaap_FairValueDisclosuresTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresTextBlock" xlink:to="us-gaap_FairValueDisclosuresTextBlock_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl_2" xml:lang="en-US">Fair Value Disclosures [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" xlink:to="us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract_lbl_7d2598" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract_lbl_7d2598" xml:lang="en-US">Fair Value of Financial Instruments and Real Estate</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentsDisclosureTextBlock" xlink:to="us-gaap_FinancialInstrumentsDisclosureTextBlock_lbl_4eff2e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FinancialInstrumentsDisclosureTextBlock_lbl_4eff2e" xml:lang="en-US">Fair Value of Financial Instruments and Real Estate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentsDisclosureTextBlock" xlink:label="us-gaap_FinancialInstrumentsDisclosureTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentsDisclosureTextBlock" xlink:to="us-gaap_FinancialInstrumentsDisclosureTextBlock_lbl_2" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PropertyAndCasualtyInsuranceActivityAbstract" xlink:label="king_PropertyAndCasualtyInsuranceActivityAbstract" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_HedgeFundInvestmentsTableTextBlock" xlink:label="king_HedgeFundInvestmentsTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_HedgeFundInvestmentsTableTextBlock_lbl_305f05" xml:lang="en-US">Schedule of Hedge Fund Investments</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfFairValueHierarchyOfLongtermDebtTableTextBlock" xlink:label="king_ScheduleOfFairValueHierarchyOfLongtermDebtTableTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTextBlock" xlink:label="us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfEarnedPremiumsTextBlock" xlink:label="king_ScheduleOfEarnedPremiumsTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ScheduleOfEarnedPremiumsTextBlock_lbl_2705d2" xml:lang="en-US">Schedule of Earned Premiums</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfUnpaidLossesAndLaeTableTextBlock" xlink:label="king_ScheduleOfUnpaidLossesAndLaeTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ScheduleOfUnpaidLossesAndLaeTableTextBlock_lbl_e8db66" xml:lang="en-US">Schedule of unpaid losses and LAE</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfLineOfBusinessTabletextblock" xlink:label="king_ScheduleOfLineOfBusinessTabletextblock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ScheduleOfLineOfBusinessTabletextblock_lbl_4134c5" xml:lang="en-US">Schedule of Line of Business</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsAllocatedClaimAdjustmentTableTextBlock" xlink:label="king_IncurredClaimsAllocatedClaimAdjustmentTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsAllocatedClaimAdjustmentTableTextBlock_lbl_c0c2f9" xml:lang="en-US">Incurred Claims and Allocated Claim Adjustment Expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CumulativePaidClaimsAllocatedClaimAdjustmentExpensesTableTextBlock" xlink:label="king_CumulativePaidClaimsAllocatedClaimAdjustmentExpensesTableTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CumulativePaidClaimsAllocatedClaimAdjustmentExpensesTableTextBlock" xlink:to="king_CumulativePaidClaimsAllocatedClaimAdjustmentExpensesTableTextBlock_lbl_a8a76c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CumulativePaidClaimsAllocatedClaimAdjustmentExpensesTableTextBlock_lbl_a8a76c" xml:lang="en-US">Cumulative Paid Claims and Allocated Claim Adjustment Expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ReconciliationOfNetIncurredAndPaidClaimsTableTextBlock" xlink:label="king_ReconciliationOfNetIncurredAndPaidClaimsTableTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ReconciliationOfNetIncurredAndPaidClaimsTableTextBlock" xlink:to="king_ReconciliationOfNetIncurredAndPaidClaimsTableTextBlock_lbl_e370a1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ReconciliationOfNetIncurredAndPaidClaimsTableTextBlock_lbl_e370a1" xml:lang="en-US">Reconciliation of the net incurred and paid claims</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortdurationInsuranceContractsScheduleOfHistoricalClaimsDurationTableTextBlock" xlink:label="us-gaap_ShortdurationInsuranceContractsScheduleOfHistoricalClaimsDurationTableTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfCedingCommissionRevenuetabletextblock" xlink:label="king_ScheduleOfCedingCommissionRevenuetabletextblock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ScheduleOfCedingCommissionRevenuetabletextblock_lbl_f18324" xml:lang="en-US">Schedule of Ceding commission revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDebtTableTextBlock" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDebtTableTextBlock" xlink:to="us-gaap_ScheduleOfDebtTableTextBlock_lbl_92ec9a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl_92ec9a" xml:lang="en-US">Long-term debt</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock" xlink:label="us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock" xlink:to="us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock_lbl_c93170" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock_lbl_c93170" xml:lang="en-US">Schedule of Note and Warrant Exchange</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfPercentagesOfThePrincipalAmountTableTextBlock" xlink:label="king_ScheduleOfPercentagesOfThePrincipalAmountTableTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ScheduleOfPercentagesOfThePrincipalAmountTableTextBlock" xlink:to="king_ScheduleOfPercentagesOfThePrincipalAmountTableTextBlock_lbl_509dae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ScheduleOfPercentagesOfThePrincipalAmountTableTextBlock_lbl_509dae" xml:lang="en-US">Schedule of percentages of the principal amount</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ScheduleOfFutureContractualPaymentObligationsTableTextBlock" xlink:label="king_ScheduleOfFutureContractualPaymentObligationsTableTextBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ScheduleOfFutureContractualPaymentObligationsTableTextBlock" xlink:to="king_ScheduleOfFutureContractualPaymentObligationsTableTextBlock_lbl_c8a8b5" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl_df4363" xml:lang="en-US">Schedule of Deferrred Tax Assets and Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SummaryOfOperatingLossCarryforwardsTextBlock" xlink:label="us-gaap_SummaryOfOperatingLossCarryforwardsTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseCostTableTextBlock" xlink:label="us-gaap_LeaseCostTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl_92bd44" xml:lang="en-US">Lease cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NatureOfBusinessAbstract" xlink:label="king_NatureOfBusinessAbstract" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DirectWrittenPremiumsPercentage" xlink:label="king_DirectWrittenPremiumsPercentage" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_USTreasuryAndGovernmentsOneMember" xlink:label="king_USTreasuryAndGovernmentsOneMember" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_USTreasuryAndGovernmentsOneMember_lbl_89d48b" xml:lang="en-US">US Treasury and Government One [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedMaturitySecuritiesPoliticalSubdivisionsOfStatesTerritoriesAndPossessionsMember" xlink:label="king_FixedMaturitySecuritiesPoliticalSubdivisionsOfStatesTerritoriesAndPossessionsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FixedMaturitySecuritiesPoliticalSubdivisionsOfStatesTerritoriesAndPossessionsMember" xlink:to="king_FixedMaturitySecuritiesPoliticalSubdivisionsOfStatesTerritoriesAndPossessionsMember_lbl_e98940" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedMaturitySecuritiesCorporateAndOtherBondsIndustrialAndMiscellaneousMember" xlink:label="king_FixedMaturitySecuritiesCorporateAndOtherBondsIndustrialAndMiscellaneousMember" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FixedMaturitySecuritiesCorporateAndOtherBondsIndustrialAndMiscellaneousMember_lbl_b50a0f" xml:lang="en-US">Fixed-Maturity Securities Corporate And Other Bonds Industrial And Miscellaneous [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedMaturitySecuritiesMortgageBackedSecuritiesMember" xlink:label="king_FixedMaturitySecuritiesMortgageBackedSecuritiesMember" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FixedMaturitySecuritiesMortgageBackedSecuritiesMember_lbl_7f231f" xml:lang="en-US">Fixed Maturity Securities Residential Mortgage and other asset backed securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedMaturitySecuritiesTotalFixedMaturitySecuritiesMember" xlink:label="king_FixedMaturitySecuritiesTotalFixedMaturitySecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FixedMaturitySecuritiesTotalFixedMaturitySecuritiesMember" xlink:to="king_FixedMaturitySecuritiesTotalFixedMaturitySecuritiesMember_lbl_a87bf4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FixedMaturitySecuritiesTotalFixedMaturitySecuritiesMember_lbl_a87bf4" xml:lang="en-US">Fixed Maturity Securities Total Fixed Maturity Securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesAmortizedCosts" xlink:label="king_AvailableForSaleSecuritiesAmortizedCosts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesAmortizedCosts" xlink:to="king_AvailableForSaleSecuritiesAmortizedCosts_lbl_7a8897" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesAmortizedCosts_lbl_7a8897" xml:lang="en-US">Cost or amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSalesSecuritiesGrossUnrealizedGains" xlink:label="king_AvailableForSalesSecuritiesGrossUnrealizedGains" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesGrossUnrealizedGains" xlink:to="king_AvailableForSalesSecuritiesGrossUnrealizedGains_lbl_ea85f5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSalesSecuritiesGrossUnrealizedGains_lbl_ea85f5" xml:lang="en-US">Gross unrealized gains</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPositionLessThan12MonthsLosses" xlink:label="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPositionLessThan12MonthsLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPositionLessThan12MonthsLosses" xlink:to="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPositionLessThan12MonthsLosses_lbl_d79ca7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPositionLessThan12MonthsLosses_lbl_d79ca7" xml:lang="en-US">Gross unrealized losses - less than 12 months</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPosition12MonthsOrLongerLosses" xlink:label="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPosition12MonthsOrLongerLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPosition12MonthsOrLongerLosses" xlink:to="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPosition12MonthsOrLongerLosses_lbl_1da37d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesContinuousGrossUnrealizedLossPosition12MonthsOrLongerLosses_lbl_1da37d" xml:lang="en-US">Gross unrealized loss - more than 12 months</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesFairValueDisclosure1" xlink:label="king_AvailableForSaleSecuritiesFairValueDisclosure1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesFairValueDisclosure1" xlink:to="king_AvailableForSaleSecuritiesFairValueDisclosure1_lbl_7f7b81" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesFairValueDisclosure1_lbl_7f7b81" xml:lang="en-US">Estimated fair value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesFairValueDisclosure" xlink:to="king_AvailableForSaleSecuritiesFairValueDisclosure_lbl_cbefb3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_AvailableForSaleSecuritiesFairValueDisclosure_lbl_cbefb3" xml:lang="en-US">Estimated fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesFairValueDisclosure" xlink:label="king_AvailableForSaleSecuritiesFairValueDisclosure" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesFairValueDisclosure" xlink:to="king_AvailableForSaleSecuritiesFairValueDisclosure_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesFairValueDisclosure_lbl_7" xml:lang="en-US">[Estimated fair value]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetUnrealizedGainsLosses" xlink:label="king_NetUnrealizedGainsLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetUnrealizedGainsLosses" xlink:to="king_NetUnrealizedGainsLosses_lbl_1da888" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetUnrealizedGainsLosses_lbl_1da888" xml:lang="en-US">Net unrealized gains</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="us-gaap_FinancialInstrumentAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentAxis" xlink:to="us-gaap_FinancialInstrumentAxis_lbl_0280c4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialInstrumentAxis_lbl_0280c4" xml:lang="en-US">Financial Instrument Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LessThanOneYearMember" xlink:label="king_LessThanOneYearMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LessThanOneYearMember" xlink:to="king_LessThanOneYearMember_lbl_2139c0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LessThanOneYearMember_lbl_2139c0" xml:lang="en-US">Less Than One Year [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_OneToFiveYearsMember" xlink:label="king_OneToFiveYearsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_OneToFiveYearsMember" xlink:to="king_OneToFiveYearsMember_lbl_f1f1ac" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_OneToFiveYearsMember_lbl_f1f1ac" xml:lang="en-US">One To Five Years [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FiveToTenYearsMember" xlink:label="king_FiveToTenYearsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FiveToTenYearsMember" xlink:to="king_FiveToTenYearsMember_lbl_18e599" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FiveToTenYearsMember_lbl_18e599" xml:lang="en-US">Five To Ten Years [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_MoreThan10YearsMember" xlink:label="king_MoreThan10YearsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_MoreThan10YearsMember" xlink:to="king_MoreThan10YearsMember_lbl_42ba8d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_MoreThan10YearsMember_lbl_42ba8d" xml:lang="en-US">More Than 10 Years [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ResidentialMortgageAndOtherAssetBackedSecuritiesMember" xlink:label="king_ResidentialMortgageAndOtherAssetBackedSecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ResidentialMortgageAndOtherAssetBackedSecuritiesMember" xlink:to="king_ResidentialMortgageAndOtherAssetBackedSecuritiesMember_lbl_29f898" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ResidentialMortgageAndOtherAssetBackedSecuritiesMember_lbl_29f898" xml:lang="en-US">Residential mortgage and other asset backed securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AmortizedCost" xlink:label="king_AmortizedCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AmortizedCost" xlink:to="king_AmortizedCost_lbl_f99b1b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AmortizedCost_lbl_f99b1b" xml:lang="en-US">Amortized cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValue" xlink:to="king_FairValue_lbl_dd3c8e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_FairValue_lbl_dd3c8e" xml:lang="en-US">Estimated fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FairValue" xlink:label="king_FairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValue" xlink:to="king_FairValue_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FairValue_lbl_3" xml:lang="en-US">[Estimated fair value 1]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis_lbl_9cd231" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementClassOfStockAxis_lbl_9cd231" xml:lang="en-US">Statement Class Of Stock Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl_755535" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameAxis_lbl_755535" xml:lang="en-US">Plan Name Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_HedgeFundMember" xlink:label="king_HedgeFundMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_HedgeFundMember" xlink:to="king_HedgeFundMember_lbl_4582af" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_HedgeFundMember_lbl_4582af" xml:lang="en-US">Hedge Funds [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PreferredStockEquitySecuritiesMember" xlink:label="king_PreferredStockEquitySecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PreferredStockEquitySecuritiesMember" xlink:to="king_PreferredStockEquitySecuritiesMember_lbl_7b533e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PreferredStockEquitySecuritiesMember_lbl_7b533e" xml:lang="en-US">Preferred Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CommonStockMutualFundAndExchangeTradeFundEquitySecuritiesMember" xlink:label="king_CommonStockMutualFundAndExchangeTradeFundEquitySecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CommonStockMutualFundAndExchangeTradeFundEquitySecuritiesMember" xlink:to="king_CommonStockMutualFundAndExchangeTradeFundEquitySecuritiesMember_lbl_6c4e3c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CommonStockMutualFundAndExchangeTradeFundEquitySecuritiesMember_lbl_6c4e3c" xml:lang="en-US">Common stock, mutual fund and exchange traded funds [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AggregateMember" xlink:label="king_AggregateMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AggregateMember" xlink:to="king_AggregateMember_lbl_575187" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AggregateMember_lbl_575187" xml:lang="en-US">Total [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_OtherInvestmentsAtCost" xlink:to="king_OtherInvestmentsAtCost_lbl_a932ed" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="king_OtherInvestmentsAtCost_lbl_a932ed" xml:lang="en-US">Cost</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_OtherInvestmentsAtCost" xlink:label="king_OtherInvestmentsAtCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_OtherInvestmentsAtCost" xlink:to="king_OtherInvestmentsAtCost_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_OtherInvestmentsAtCost_lbl_2" xml:lang="en-US">[Cost]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GrossGains" xlink:label="king_GrossGains" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossGains" xlink:to="king_GrossGains_lbl_99288e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GrossGains_lbl_99288e" xml:lang="en-US">Gross gains</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GrossLosses" xlink:label="king_GrossLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossLosses" xlink:to="king_GrossLosses_lbl_3a0a4c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GrossLosses_lbl_3a0a4c" xml:lang="en-US">Gross losses</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherInvestments" xlink:to="us-gaap_OtherInvestments_lbl_d70f97" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_OtherInvestments_lbl_d70f97" xml:lang="en-US">Estimated fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeAxis_lbl_d267cc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentTypeAxis_lbl_d267cc" xml:lang="en-US">Investment Type Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ExchangeTradedDebtMember" xlink:label="king_ExchangeTradedDebtMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ExchangeTradedDebtMember" xlink:to="king_ExchangeTradedDebtMember_lbl_34df15" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ExchangeTradedDebtMember_lbl_34df15" xml:lang="en-US">Exchange Traded Debt [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_HeldToMaturitySecuritiesUSTreasurySecuritiesMember" xlink:label="king_HeldToMaturitySecuritiesUSTreasurySecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_HeldToMaturitySecuritiesUSTreasurySecuritiesMember" xlink:to="king_HeldToMaturitySecuritiesUSTreasurySecuritiesMember_lbl_bcea09" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_HeldToMaturitySecuritiesUSTreasurySecuritiesMember_lbl_bcea09" xml:lang="en-US">Held-to-Maturity Securities US Treasury Securities [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CostOrAmortizedCost" xlink:to="king_CostOrAmortizedCost_lbl_aa1c0e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_CostOrAmortizedCost_lbl_aa1c0e" xml:lang="en-US">Cost or amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CostOrAmortizedCost" xlink:label="king_CostOrAmortizedCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CostOrAmortizedCost" xlink:to="king_CostOrAmortizedCost_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CostOrAmortizedCost_lbl_2" xml:lang="en-US">[Cost or amortized cost]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossUnrealizedGains" xlink:to="king_GrossUnrealizedGains_lbl_4b4c8e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_GrossUnrealizedGains_lbl_4b4c8e" xml:lang="en-US">Gross unrealized gains</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GrossUnrealizedGains" xlink:label="king_GrossUnrealizedGains" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossUnrealizedGains" xlink:to="king_GrossUnrealizedGains_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GrossUnrealizedGains_lbl_3" xml:lang="en-US">[Gross unrealized gains]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossUnrealizedLossmoreThan12Months" xlink:to="king_GrossUnrealizedLossmoreThan12Months_lbl_7d1593" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_GrossUnrealizedLossmoreThan12Months_lbl_7d1593" xml:lang="en-US">Gross unrealized loss - more than 12 months</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GrossUnrealizedLossmoreThan12Months" xlink:label="king_GrossUnrealizedLossmoreThan12Months" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossUnrealizedLossmoreThan12Months" xlink:to="king_GrossUnrealizedLossmoreThan12Months_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GrossUnrealizedLossmoreThan12Months_lbl_4" xml:lang="en-US">[Gross unrealized loss - more than 12 months]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossUnrealizedLosseslessThan12Months" xlink:to="king_GrossUnrealizedLosseslessThan12Months_lbl_7d9ae6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_GrossUnrealizedLosseslessThan12Months_lbl_7d9ae6" xml:lang="en-US">Gross unrealized losses - less than 12 months</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GrossUnrealizedLosseslessThan12Months" xlink:label="king_GrossUnrealizedLosseslessThan12Months" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossUnrealizedLosseslessThan12Months" xlink:to="king_GrossUnrealizedLosseslessThan12Months_lbl_5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GrossUnrealizedLosseslessThan12Months_lbl_5" xml:lang="en-US">[Gross unrealized losses - less than 12 months]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValue1" xlink:to="king_FairValue1_lbl_75bc97" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_FairValue1_lbl_75bc97" xml:lang="en-US">Estimated fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FairValue1" xlink:label="king_FairValue1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValue1" xlink:to="king_FairValue1_lbl_6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FairValue1_lbl_6" xml:lang="en-US">[Estimated fair value 2]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetUnrealizedGainslosses1" xlink:to="king_NetUnrealizedGainslosses1_lbl_b33213" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_NetUnrealizedGainslosses1_lbl_b33213" xml:lang="en-US">Net unrealized gains</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetUnrealizedGainslosses1" xlink:label="king_NetUnrealizedGainslosses1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetUnrealizedGainslosses1" xlink:to="king_NetUnrealizedGainslosses1_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetUnrealizedGainslosses1_lbl_7" xml:lang="en-US">[Net unrealized gains]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AmortizedCostHeldToMaturitySecurities" xlink:to="king_AmortizedCostHeldToMaturitySecurities_lbl_bb16c7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_AmortizedCostHeldToMaturitySecurities_lbl_bb16c7" xml:lang="en-US">Amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AmortizedCostHeldToMaturitySecurities" xlink:label="king_AmortizedCostHeldToMaturitySecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AmortizedCostHeldToMaturitySecurities" xlink:to="king_AmortizedCostHeldToMaturitySecurities_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AmortizedCostHeldToMaturitySecurities_lbl_2" xml:lang="en-US">[Amortized cost]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValueHeldToMaturitySecurities" xlink:to="king_FairValueHeldToMaturitySecurities_lbl_8b908d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_FairValueHeldToMaturitySecurities_lbl_8b908d" xml:lang="en-US">Estimated fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FairValueHeldToMaturitySecurities" xlink:label="king_FairValueHeldToMaturitySecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValueHeldToMaturitySecurities" xlink:to="king_FairValueHeldToMaturitySecurities_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FairValueHeldToMaturitySecurities_lbl_3" xml:lang="en-US">[Estimated fair value 3]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedmaturitySecurities" xlink:label="king_FixedmaturitySecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FixedmaturitySecurities" xlink:to="king_FixedmaturitySecurities_lbl_cc8f2f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FixedmaturitySecurities_lbl_cc8f2f" xml:lang="en-US">Fixed-maturity securities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_EquitySecurities1" xlink:label="king_EquitySecurities1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_EquitySecurities1" xlink:to="king_EquitySecurities1_lbl_99a93b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_EquitySecurities1_lbl_99a93b" xml:lang="en-US">Equity securities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CashAndCashEquivalents" xlink:to="king_CashAndCashEquivalents_lbl_b08aca" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_CashAndCashEquivalents_lbl_b08aca" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CashAndCashEquivalents" xlink:label="king_CashAndCashEquivalents" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CashAndCashEquivalents" xlink:to="king_CashAndCashEquivalents_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CashAndCashEquivalents_lbl_4" xml:lang="en-US">[Cash and cash equivalents]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalInvestments" xlink:to="king_TotalInvestments_lbl_c93749" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_TotalInvestments_lbl_c93749" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalInvestments" xlink:label="king_TotalInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalInvestments" xlink:to="king_TotalInvestments_lbl_5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalInvestments_lbl_5" xml:lang="en-US">[Total]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeInvestmentExpense" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense" xlink:to="us-gaap_InvestmentIncomeInvestmentExpense_lbl_0f2635" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl_0f2635" xml:lang="en-US">Investment expenses</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeNet" xlink:to="us-gaap_InvestmentIncomeNet_lbl_917885" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InvestmentIncomeNet_lbl_917885" xml:lang="en-US">Net investment income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeNet" xlink:label="us-gaap_InvestmentIncomeNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeNet" xlink:to="us-gaap_InvestmentIncomeNet_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentIncomeNet_lbl_7" xml:lang="en-US">[Investment Income, Net]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RealizedGainsLossesFixedMaturitysecuritiesMember" xlink:label="king_RealizedGainsLossesFixedMaturitysecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RealizedGainsLossesFixedMaturitysecuritiesMember" xlink:to="king_RealizedGainsLossesFixedMaturitysecuritiesMember_lbl_39ac67" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_RealizedGainsLossesFixedMaturitysecuritiesMember_lbl_39ac67" xml:lang="en-US">Realized Gains Losses Fixed-maturity securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RealizedGainsLossesEquitysecuritiesMember" xlink:label="king_RealizedGainsLossesEquitysecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RealizedGainsLossesEquitysecuritiesMember" xlink:to="king_RealizedGainsLossesEquitysecuritiesMember_lbl_064fe9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_RealizedGainsLossesEquitysecuritiesMember_lbl_064fe9" xml:lang="en-US">Realized Gains Losses Equity securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RealizedGainsLossesOtherInvestmentsMember" xlink:label="king_RealizedGainsLossesOtherInvestmentsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RealizedGainsLossesOtherInvestmentsMember" xlink:to="king_RealizedGainsLossesOtherInvestmentsMember_lbl_43ce46" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_RealizedGainsLossesOtherInvestmentsMember_lbl_43ce46" xml:lang="en-US">Realized Gains Losses Other Investments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_UnrealizedLossesGainsEquitysecuritiesMember" xlink:label="king_UnrealizedLossesGainsEquitysecuritiesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_UnrealizedLossesGainsEquitysecuritiesMember" xlink:to="king_UnrealizedLossesGainsEquitysecuritiesMember_lbl_c05f46" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_UnrealizedLossesGainsEquitysecuritiesMember_lbl_c05f46" xml:lang="en-US">Unrealized Losses Gains Equity securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_UnrealizedLossesGainsOtherInvestmentsMember" xlink:label="king_UnrealizedLossesGainsOtherInvestmentsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_UnrealizedLossesGainsOtherInvestmentsMember" xlink:to="king_UnrealizedLossesGainsOtherInvestmentsMember_lbl_29604e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_UnrealizedLossesGainsOtherInvestmentsMember_lbl_29604e" xml:lang="en-US">Unrealized Losses Gains Other Investments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingLoss" xlink:label="king_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingLoss" xlink:to="king_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingLoss_lbl_3edc4f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingLoss_lbl_3edc4f" xml:lang="en-US">Net unrealized gains (losses)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetGainsOnInvestments" xlink:to="king_NetGainsOnInvestments_lbl_522db2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_NetGainsOnInvestments_lbl_522db2" xml:lang="en-US">Net gains (losses) on investments</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetGainsOnInvestments" xlink:label="king_NetGainsOnInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetGainsOnInvestments" xlink:to="king_NetGainsOnInvestments_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetGainsOnInvestments_lbl_3" xml:lang="en-US">[Net gains (losses) on investments]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSalesSecuritiesGrossRealizedGains" xlink:label="king_AvailableForSalesSecuritiesGrossRealizedGains" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesGrossRealizedGains" xlink:to="king_AvailableForSalesSecuritiesGrossRealizedGains_lbl_27357f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSalesSecuritiesGrossRealizedGains_lbl_27357f" xml:lang="en-US">Gross realized gains</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableforsalesSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xlink:label="king_AvailableforsalesSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableforsalesSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xlink:to="king_AvailableforsalesSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments_lbl_de4da4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableforsalesSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments_lbl_de4da4" xml:lang="en-US">Gross realized losses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalFixedMaturitySecurities" xlink:label="king_TotalFixedMaturitySecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalFixedMaturitySecurities" xlink:to="king_TotalFixedMaturitySecurities_lbl_833372" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalFixedMaturitySecurities_lbl_833372" xml:lang="en-US">Total fixed-maturity securities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetGainLossOnSaleOfSecurities" xlink:label="king_NetGainLossOnSaleOfSecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetGainLossOnSaleOfSecurities" xlink:to="king_NetGainLossOnSaleOfSecurities_lbl_03d5c0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetGainLossOnSaleOfSecurities_lbl_03d5c0" xml:lang="en-US">Total equity securities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GrossGainsLossesOnOtherInvestments" xlink:label="king_GrossGainsLossesOnOtherInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GrossGainsLossesOnOtherInvestments" xlink:to="king_GrossGainsLossesOnOtherInvestments_lbl_6dc9ed" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GrossGainsLossesOnOtherInvestments_lbl_6dc9ed" xml:lang="en-US">Total other investments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesGrossRealizedLosses" xlink:to="king_AvailableForSalesSecuritiesGrossRealizedLosses_lbl_946783" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_AvailableForSalesSecuritiesGrossRealizedLosses_lbl_946783" xml:lang="en-US">Gross losses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSalesSecuritiesGrossRealizedLosses" xlink:label="king_AvailableForSalesSecuritiesGrossRealizedLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesGrossRealizedLosses" xlink:to="king_AvailableForSalesSecuritiesGrossRealizedLosses_lbl_9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSalesSecuritiesGrossRealizedLosses_lbl_9" xml:lang="en-US">[Gross losses]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:to="us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_lbl_035865" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_lbl_035865" xml:lang="en-US">Defined Benefit Plan By Plan Asset Categories Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_USTreasuryAndGovernmentMember" xlink:label="us-gaap_USTreasuryAndGovernmentMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_USTreasuryAndGovernmentMember" xlink:to="us-gaap_USTreasuryAndGovernmentMember_lbl_8e03c5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_USTreasuryAndGovernmentMember_lbl_8e03c5" xml:lang="en-US">US Treasury and Government [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:to="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl_595888" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl_595888" xml:lang="en-US">Estimated fair value - less than 12 months</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLosses" xlink:label="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLosses" xlink:to="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLosses_lbl_891bee" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLosses_lbl_891bee" xml:lang="en-US">Unrealized losses - less than 12 months</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLoss" xlink:label="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLoss" xlink:to="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLoss_lbl_19d7cd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsLoss_lbl_19d7cd" xml:lang="en-US">Number of positions held - less than 12 months</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:to="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl_985d43" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl_985d43" xml:lang="en-US">Estimated fair value - 12 months or more</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:to="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl_5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSalesSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl_5" xml:lang="en-US">[Estimated fair value - 12 months or more]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLosses" xlink:label="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLosses" xlink:to="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLosses_lbl_1c2c74" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLosses_lbl_1c2c74" xml:lang="en-US">Unrealized losses - 12 months or more</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLoss" xlink:label="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLoss" xlink:to="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLoss_lbl_148e64" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerLoss_lbl_148e64" xml:lang="en-US">Number of positions held - 12 months or more</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FairValueOptionLoansHeldAsAssetsAggregateDifferences" xlink:label="king_FairValueOptionLoansHeldAsAssetsAggregateDifferences" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValueOptionLoansHeldAsAssetsAggregateDifferences" xlink:to="king_FairValueOptionLoansHeldAsAssetsAggregateDifferences_lbl_294371" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FairValueOptionLoansHeldAsAssetsAggregateDifferences_lbl_294371" xml:lang="en-US">Estimated fair value - total</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLosses" xlink:label="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLosses" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLosses" xlink:to="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLosses_lbl_8c5a17" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLosses_lbl_8c5a17" xml:lang="en-US">Unrealized losses - total</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodValue" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockRedeemedOrCalledDuringPeriodValue" xlink:to="us-gaap_StockRedeemedOrCalledDuringPeriodValue_lbl_1de040" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodValue_lbl_1de040" xml:lang="en-US">Proceeds from the sale and redemption of fixed-maturity securities held-to-maturity</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ProceedsFromTheSaleOrMaturityOfFixedMaturitySecuritiesAvailableForSale" xlink:label="king_ProceedsFromTheSaleOrMaturityOfFixedMaturitySecuritiesAvailableForSale" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ProceedsFromTheSaleOrMaturityOfFixedMaturitySecuritiesAvailableForSale" xlink:to="king_ProceedsFromTheSaleOrMaturityOfFixedMaturitySecuritiesAvailableForSale_lbl_5b3fa5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ProceedsFromTheSaleOrMaturityOfFixedMaturitySecuritiesAvailableForSale_lbl_5b3fa5" xml:lang="en-US">Proceeds from the sale or maturity of fixed-maturity securities available-for-sale</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity" xlink:to="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity_lbl_e2dbcc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity_lbl_e2dbcc" xml:lang="en-US">Sale - equity securities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity" xlink:label="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity" xlink:to="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ProceedsFromSalesOfAvailableForSaleSecuritiesEquity_lbl_4" xml:lang="en-US">[Sale - equity securities]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentCollateralAmount" xlink:label="us-gaap_DebtInstrumentCollateralAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentCollateralAmount" xlink:to="us-gaap_DebtInstrumentCollateralAmount_lbl_a33f67" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentCollateralAmount_lbl_a33f67" xml:lang="en-US">Amount of required collateral</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="us-gaap_InvestmentsFairValueDisclosure" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentsFairValueDisclosure" xlink:to="us-gaap_InvestmentsFairValueDisclosure_lbl_780a02" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl_780a02" xml:lang="en-US">Fair value of the eligible investments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFairValue" xlink:to="us-gaap_DebtInstrumentFairValue_lbl_7c6b88" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentFairValue_lbl_7c6b88" xml:lang="en-US">Estimated fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentFairValue" xlink:label="us-gaap_DebtInstrumentFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFairValue" xlink:to="us-gaap_DebtInstrumentFairValue_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentFairValue_lbl_7" xml:lang="en-US">[Debt Instrument, Fair Value Disclosure]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl_88d7df" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl_88d7df" xml:lang="en-US">Fair Value By Fair Value Hierarchy Level Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="us-gaap_FairValueInputsLevel1Member" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel1Member" xlink:to="us-gaap_FairValueInputsLevel1Member_lbl_770d49" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl_770d49" xml:lang="en-US">Level 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="us-gaap_FairValueInputsLevel2Member" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel2Member" xlink:to="us-gaap_FairValueInputsLevel2Member_lbl_068db5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl_068db5" xml:lang="en-US">Level 2 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="us-gaap_FairValueInputsLevel3Member" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel3Member" xlink:to="us-gaap_FairValueInputsLevel3Member_lbl_a6a3bb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl_a6a3bb" xml:lang="en-US">Level 3 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_USTreasurySecuritiesAndObligationsOfUSGovernmentCorporationsAndAgencies" xlink:label="king_USTreasurySecuritiesAndObligationsOfUSGovernmentCorporationsAndAgencies" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_USTreasurySecuritiesAndObligationsOfUSGovernmentCorporationsAndAgencies" xlink:to="king_USTreasurySecuritiesAndObligationsOfUSGovernmentCorporationsAndAgencies_lbl_280263" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_USTreasurySecuritiesAndObligationsOfUSGovernmentCorporationsAndAgencies_lbl_280263" xml:lang="en-US">U.S. Treasury securities and obligations of U.S. government corporations and agencies</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PoliticalSubdivisionsOfStatesTerritoriesAndPossessions" xlink:label="king_PoliticalSubdivisionsOfStatesTerritoriesAndPossessions" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PoliticalSubdivisionsOfStatesTerritoriesAndPossessions" xlink:to="king_PoliticalSubdivisionsOfStatesTerritoriesAndPossessions_lbl_93e247" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PoliticalSubdivisionsOfStatesTerritoriesAndPossessions_lbl_93e247" xml:lang="en-US">Political subdivisions of states, territories and possessions</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CorporateAndOtherBondsIndustrialAndMiscellaneous" xlink:label="king_CorporateAndOtherBondsIndustrialAndMiscellaneous" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CorporateAndOtherBondsIndustrialAndMiscellaneous" xlink:to="king_CorporateAndOtherBondsIndustrialAndMiscellaneous_lbl_e325e2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CorporateAndOtherBondsIndustrialAndMiscellaneous_lbl_e325e2" xml:lang="en-US">Corporate and other bonds industrial and miscellaneous</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ResidentialMortgageAndOtherAssetBackedSecurities" xlink:label="king_ResidentialMortgageAndOtherAssetBackedSecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ResidentialMortgageAndOtherAssetBackedSecurities" xlink:to="king_ResidentialMortgageAndOtherAssetBackedSecurities_lbl_a66a75" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ResidentialMortgageAndOtherAssetBackedSecurities_lbl_a66a75" xml:lang="en-US">Residential mortgage and other asset backed securities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedMaturitiesNet" xlink:label="king_FixedMaturitiesNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FixedMaturitiesNet" xlink:to="king_FixedMaturitiesNet_lbl_44088e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FixedMaturitiesNet_lbl_44088e" xml:lang="en-US">Total fixed maturities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_EquityInvestments" xlink:to="king_EquityInvestments_lbl_a1b881" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_EquityInvestments_lbl_a1b881" xml:lang="en-US">Equity securities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_EquityInvestments" xlink:label="king_EquityInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_EquityInvestments" xlink:to="king_EquityInvestments_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_EquityInvestments_lbl_7" xml:lang="en-US">[Equity securities]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsFairValueDisclosure" xlink:to="us-gaap_AssetsFairValueDisclosure_lbl_c6b7b8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl_c6b7b8" xml:lang="en-US">Total investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="us-gaap_AssetsFairValueDisclosure" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsFairValueDisclosure" xlink:to="us-gaap_AssetsFairValueDisclosure_lbl_8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl_8" xml:lang="en-US">[Assets, Fair Value Disclosure]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AlternativeInvestment" xlink:label="us-gaap_AlternativeInvestment" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AlternativeInvestment" xlink:to="us-gaap_AlternativeInvestment_lbl_4c87c7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AlternativeInvestment_lbl_4c87c7" xml:lang="en-US">Hedge fund investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeniorNotes" xlink:label="us-gaap_SeniorNotes" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeniorNotes" xlink:to="us-gaap_SeniorNotes_lbl_e062d3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SeniorNotes_lbl_e062d3" xml:lang="en-US">Senior Notes due 2024</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CarryingValueMember" xlink:label="king_CarryingValueMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CarryingValueMember" xlink:to="king_CarryingValueMember_lbl_3d8d7a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CarryingValueMember_lbl_3d8d7a" xml:lang="en-US">Carrying Value [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FairValueMember" xlink:label="king_FairValueMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValueMember" xlink:to="king_FairValueMember_lbl_235ad6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FairValueMember_lbl_235ad6" xml:lang="en-US">Fair Value [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FixedmaturityInvestmentsHeldToMaturity" xlink:label="king_FixedmaturityInvestmentsHeldToMaturity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FixedmaturityInvestmentsHeldToMaturity" xlink:to="king_FixedmaturityInvestmentsHeldToMaturity_lbl_0b93de" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FixedmaturityInvestmentsHeldToMaturity_lbl_0b93de" xml:lang="en-US">Fixed-maturity securities held-to-maturity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:to="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl_9cf382" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl_9cf382" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:to="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl_3" xml:lang="en-US">[Cash and Cash Equivalents, Fair Value Disclosure]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceReceivablesCaseBasis" xlink:to="us-gaap_ReinsuranceReceivablesCaseBasis_lbl_954a86" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ReinsuranceReceivablesCaseBasis_lbl_954a86" xml:lang="en-US">Reinsurance receivables, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReinsuranceReceivablesCaseBasis" xlink:label="us-gaap_ReinsuranceReceivablesCaseBasis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceReceivablesCaseBasis" xlink:to="us-gaap_ReinsuranceReceivablesCaseBasis_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceReceivablesCaseBasis_lbl_4" xml:lang="en-US">[Reinsurance Recoverables, Case Basis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsReceivableGross" xlink:to="us-gaap_PremiumsReceivableGross_lbl_bea234" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PremiumsReceivableGross_lbl_bea234" xml:lang="en-US">Premiums receivable, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PremiumsReceivableGross" xlink:label="us-gaap_PremiumsReceivableGross" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsReceivableGross" xlink:to="us-gaap_PremiumsReceivableGross_lbl_5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsReceivableGross_lbl_5" xml:lang="en-US">[Premiums Receivable, Gross]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RealEstateAccumulatedDepreciation" xlink:label="us-gaap_RealEstateAccumulatedDepreciation" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RealEstateAccumulatedDepreciation" xlink:to="us-gaap_RealEstateAccumulatedDepreciation_lbl_86c23f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RealEstateAccumulatedDepreciation_lbl_86c23f" xml:lang="en-US">Real estate, net of accumulated depreciation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsurancePayable" xlink:to="us-gaap_ReinsurancePayable_lbl_5aa954" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ReinsurancePayable_lbl_5aa954" xml:lang="en-US">Reinsurance balances payable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis" xlink:label="srt_TitleOfIndividualAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualAxis_lbl_62f3ba" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_TitleOfIndividualAxis_lbl_62f3ba" xml:lang="en-US">Title Of Individual Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl_9ebf17" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl_9ebf17" xml:lang="en-US">Property Plant And Equipment By Type Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PremiumswrittenMember" xlink:label="king_PremiumswrittenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PremiumswrittenMember" xlink:to="king_PremiumswrittenMember_lbl_b14a6d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PremiumswrittenMember_lbl_b14a6d" xml:lang="en-US">Premiums written Member</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ChangeinunearnedpremiumsMember" xlink:label="king_ChangeinunearnedpremiumsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ChangeinunearnedpremiumsMember" xlink:to="king_ChangeinunearnedpremiumsMember_lbl_bbfed5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ChangeinunearnedpremiumsMember_lbl_bbfed5" xml:lang="en-US">Change in unearned premiums [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PremiumsearnedMember" xlink:label="king_PremiumsearnedMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PremiumsearnedMember" xlink:to="king_PremiumsearnedMember_lbl_f26967" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PremiumsearnedMember_lbl_f26967" xml:lang="en-US">Premiums earned [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AssumedPropertyAndCasultyInsuranceActivity" xlink:label="king_AssumedPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AssumedPropertyAndCasultyInsuranceActivity" xlink:to="king_AssumedPropertyAndCasultyInsuranceActivity_lbl_03d8bd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AssumedPropertyAndCasultyInsuranceActivity_lbl_03d8bd" xml:lang="en-US">Assumed</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CededPropertyAndCasultyInsuranceActivity" xlink:label="king_CededPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CededPropertyAndCasultyInsuranceActivity" xlink:to="king_CededPropertyAndCasultyInsuranceActivity_lbl_d8117c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CededPropertyAndCasultyInsuranceActivity_lbl_d8117c" xml:lang="en-US">Ceeded</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetPropertyAndCasultyInsuranceActivity" xlink:label="king_NetPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetPropertyAndCasultyInsuranceActivity" xlink:to="king_NetPropertyAndCasultyInsuranceActivity_lbl_2e2ae0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetPropertyAndCasultyInsuranceActivity_lbl_2e2ae0" xml:lang="en-US">Net</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DirectPropertyAndCasultyInsuranceActivity" xlink:label="king_DirectPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DirectPropertyAndCasultyInsuranceActivity" xlink:to="king_DirectPropertyAndCasultyInsuranceActivity_lbl_b75bbe" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DirectPropertyAndCasultyInsuranceActivity_lbl_b75bbe" xml:lang="en-US">Direct</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities" xlink:label="us-gaap_IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities" xlink:to="us-gaap_IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities_lbl_85c755" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities_lbl_85c755" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LessReinsuranceRecoverables" xlink:label="king_LessReinsuranceRecoverables" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LessReinsuranceRecoverables" xlink:to="king_LessReinsuranceRecoverables_lbl_9ac4ff" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LessReinsuranceRecoverables_lbl_9ac4ff" xml:lang="en-US">Less reinsurance recoverables</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetBalanceBeginningOfPeriod" xlink:label="king_NetBalanceBeginningOfPeriod" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetBalanceBeginningOfPeriod" xlink:to="king_NetBalanceBeginningOfPeriod_lbl_c5c6ac" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetBalanceBeginningOfPeriod_lbl_c5c6ac" xml:lang="en-US">Net balance, beginning of period</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CurrentYearPropertyAndCasultyInsuranceActivity" xlink:label="king_CurrentYearPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CurrentYearPropertyAndCasultyInsuranceActivity" xlink:to="king_CurrentYearPropertyAndCasultyInsuranceActivity_lbl_c6ecd9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CurrentYearPropertyAndCasultyInsuranceActivity_lbl_c6ecd9" xml:lang="en-US">Current year</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PriorYearsPropertyAndCasultyInsuranceActivity" xlink:label="king_PriorYearsPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PriorYearsPropertyAndCasultyInsuranceActivity" xlink:to="king_PriorYearsPropertyAndCasultyInsuranceActivity_lbl_497ebe" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PriorYearsPropertyAndCasultyInsuranceActivity_lbl_497ebe" xml:lang="en-US">Prior years</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalIncurredPropertyAndCasultyInsuranceActivity" xlink:label="king_TotalIncurredPropertyAndCasultyInsuranceActivity" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalIncurredPropertyAndCasultyInsuranceActivity" xlink:to="king_TotalIncurredPropertyAndCasultyInsuranceActivity_lbl_dcb087" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalIncurredPropertyAndCasultyInsuranceActivity_lbl_dcb087" xml:lang="en-US">Total incurred</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PaidRelatedToCurrentYear" xlink:to="king_PaidRelatedToCurrentYear_lbl_abd3fd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_PaidRelatedToCurrentYear_lbl_abd3fd" xml:lang="en-US">Current year</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PaidRelatedToCurrentYear" xlink:label="king_PaidRelatedToCurrentYear" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PaidRelatedToCurrentYear" xlink:to="king_PaidRelatedToCurrentYear_lbl_8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PaidRelatedToCurrentYear_lbl_8" xml:lang="en-US">[Current year]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PaidRelatedToPriorYears" xlink:to="king_PaidRelatedToPriorYears_lbl_bb4f37" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_PaidRelatedToPriorYears_lbl_bb4f37" xml:lang="en-US">Prior years</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PaidRelatedToPriorYears" xlink:label="king_PaidRelatedToPriorYears" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PaidRelatedToPriorYears" xlink:to="king_PaidRelatedToPriorYears_lbl_9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PaidRelatedToPriorYears_lbl_9" xml:lang="en-US">[Prior years]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PaidRelatedToTotalPaid" xlink:label="king_PaidRelatedToTotalPaid" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PaidRelatedToTotalPaid" xlink:to="king_PaidRelatedToTotalPaid_lbl_22c920" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PaidRelatedToTotalPaid_lbl_22c920" xml:lang="en-US">Total paid</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetBalanceAtEndOfPeriod" xlink:label="king_NetBalanceAtEndOfPeriod" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetBalanceAtEndOfPeriod" xlink:to="king_NetBalanceAtEndOfPeriod_lbl_f5e117" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetBalanceAtEndOfPeriod_lbl_f5e117" xml:lang="en-US">Net balance at end of period</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AddReinsuranceRecoverables" xlink:label="king_AddReinsuranceRecoverables" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AddReinsuranceRecoverables" xlink:to="king_AddReinsuranceRecoverables_lbl_c8c0b5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AddReinsuranceRecoverables_lbl_c8c0b5" xml:lang="en-US">Add reinsurance recoverables</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_BalanceAtEndOfPeriod" xlink:label="king_BalanceAtEndOfPeriod" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_BalanceAtEndOfPeriod" xlink:to="king_BalanceAtEndOfPeriod_lbl_9e9896" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_BalanceAtEndOfPeriod_lbl_9e9896" xml:lang="en-US">Balance at end of period</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandFourteenMember" xlink:label="king_TwoThousandFourteenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandFourteenMember" xlink:to="king_TwoThousandFourteenMember_lbl_cd3b2b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandFourteenMember_lbl_cd3b2b" xml:lang="en-US">2014</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandFifteenMember" xlink:label="king_TwoThousandFifteenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandFifteenMember" xlink:to="king_TwoThousandFifteenMember_lbl_b20651" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandFifteenMember_lbl_b20651" xml:lang="en-US">2015</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandSixteenMember" xlink:label="king_TwoThousandSixteenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandSixteenMember" xlink:to="king_TwoThousandSixteenMember_lbl_25f9ad" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandSixteenMember_lbl_25f9ad" xml:lang="en-US">2016</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandSeventeenMember" xlink:label="king_TwoThousandSeventeenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandSeventeenMember" xlink:to="king_TwoThousandSeventeenMember_lbl_9bcaf4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandSeventeenMember_lbl_9bcaf4" xml:lang="en-US">2017</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandEighteenMember" xlink:label="king_TwoThousandEighteenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandEighteenMember" xlink:to="king_TwoThousandEighteenMember_lbl_bb87e3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandEighteenMember_lbl_bb87e3" xml:lang="en-US">2018</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandNineteenMember" xlink:label="king_TwoThousandNineteenMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandNineteenMember" xlink:to="king_TwoThousandNineteenMember_lbl_4aceae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandNineteenMember_lbl_4aceae" xml:lang="en-US">2019</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandTwentyMember" xlink:label="king_TwoThousandTwentyMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandTwentyMember" xlink:to="king_TwoThousandTwentyMember_lbl_a6b322" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandTwentyMember_lbl_a6b322" xml:lang="en-US">2020</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandTwentyOneMember" xlink:label="king_TwoThousandTwentyOneMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandTwentyOneMember" xlink:to="king_TwoThousandTwentyOneMember_lbl_aa1ba4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandTwentyOneMember_lbl_aa1ba4" xml:lang="en-US">2021</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandTwentyTwoMember" xlink:label="king_TwoThousandTwentyTwoMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandTwentyTwoMember" xlink:to="king_TwoThousandTwentyTwoMember_lbl_d7b369" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandTwentyTwoMember_lbl_d7b369" xml:lang="en-US">2022</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TwoThousandTwentyThreeMember" xlink:label="king_TwoThousandTwentyThreeMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TwoThousandTwentyThreeMember" xlink:to="king_TwoThousandTwentyThreeMember_lbl_71e2f6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TwoThousandTwentyThreeMember_lbl_71e2f6" xml:lang="en-US">2023 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncurredClaimsPropertyCasualtyAndLiability" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncurredClaimsPropertyCasualtyAndLiability" xlink:to="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl_b61e5f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl_b61e5f" xml:lang="en-US">Total incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2014" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2014" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2014" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2014_lbl_3276d7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2014_lbl_3276d7" xml:lang="en-US">2014 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount" xlink:label="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount" xlink:to="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount_lbl_e36e4a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount_lbl_e36e4a" xml:lang="en-US">IBNR</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims" xlink:label="us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims" xlink:to="us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims_lbl_41fb5e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims_lbl_41fb5e" xml:lang="en-US">Cumulative Number of Reported Claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2015" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2015" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2015" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2015_lbl_59ec30" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2015_lbl_59ec30" xml:lang="en-US">2015 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2016" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2016" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2016" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2016_lbl_217962" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2016_lbl_217962" xml:lang="en-US">2016 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2017" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2017" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2017" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2017_lbl_8a1cae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2017_lbl_8a1cae" xml:lang="en-US">2017 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2018" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2018" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2018" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2018_lbl_db8c33" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2018_lbl_db8c33" xml:lang="en-US">2018 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2019" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2019" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2019" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2019_lbl_baa79f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2019_lbl_baa79f" xml:lang="en-US">2019 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2020" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2020" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2020" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2020_lbl_029994" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2020_lbl_029994" xml:lang="en-US">2020 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2021" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2021" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2021" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2021_lbl_108048" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2021_lbl_108048" xml:lang="en-US">2021 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2022F" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2022F" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2022F" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2022F_lbl_bd9cd2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2022F_lbl_bd9cd2" xml:lang="en-US">2023 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IncurredClaimsPropertyCasualtyAndLiability2022" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2022" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IncurredClaimsPropertyCasualtyAndLiability2022" xlink:to="king_IncurredClaimsPropertyCasualtyAndLiability2022_lbl_5aecbd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IncurredClaimsPropertyCasualtyAndLiability2022_lbl_5aecbd" xml:lang="en-US">2022 incurred claims</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented" xlink:label="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented" xlink:to="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented_lbl_124e68" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented_lbl_124e68" xml:lang="en-US">Net liability for unpaid claim and allocated claim adjustment expenses for the accident years presented</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AllOutstandingLiabilitiesBefore2013NetOfReinsurance" xlink:label="king_AllOutstandingLiabilitiesBefore2013NetOfReinsurance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AllOutstandingLiabilitiesBefore2013NetOfReinsurance" xlink:to="king_AllOutstandingLiabilitiesBefore2013NetOfReinsurance_lbl_bd7b31" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AllOutstandingLiabilitiesBefore2013NetOfReinsurance_lbl_bd7b31" xml:lang="en-US">All outstanding liabilities before 2014, net of reinsurance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet" xlink:to="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet_lbl_bfee4d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet_lbl_bfee4d" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet" xlink:label="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet" xlink:to="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet_lbl_4" xml:lang="en-US">[Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet" xlink:label="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet" xlink:to="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet_lbl_52d3b1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet_lbl_52d3b1" xml:lang="en-US">Liabilities for claims and claim adjustment expenses, net of reinsurance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014_lbl_4a98e4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014_lbl_4a98e4" xml:lang="en-US">2014</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014_lbl_6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2014_lbl_6" xml:lang="en-US">[2014]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015_lbl_7efb87" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015_lbl_7efb87" xml:lang="en-US">2015</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2015_lbl_7" xml:lang="en-US">[2015]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016_lbl_24bfa6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016_lbl_24bfa6" xml:lang="en-US">2016</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016_lbl_8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2016_lbl_8" xml:lang="en-US">[2016]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017_lbl_cc930d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017_lbl_cc930d" xml:lang="en-US">2017</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017_lbl_9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2017_lbl_9" xml:lang="en-US">[2017]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018_lbl_d55f2f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018_lbl_d55f2f" xml:lang="en-US">2018</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018_lbl_10" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2018_lbl_10" xml:lang="en-US">[2018]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019_lbl_dd1ae2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019_lbl_dd1ae2" xml:lang="en-US">2019</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019_lbl_11" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2019_lbl_11" xml:lang="en-US">[2019]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020_lbl_0733ab" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020_lbl_0733ab" xml:lang="en-US">2020</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020_lbl_12" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2020_lbl_12" xml:lang="en-US">[2020]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021_lbl_b76aaf" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021_lbl_b76aaf" xml:lang="en-US">2021</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021_lbl_13" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpense2021_lbl_13" xml:lang="en-US">[2021]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022_lbl_a7496e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022_lbl_a7496e" xml:lang="en-US">2022</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022_lbl_14" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2022_lbl_14" xml:lang="en-US">[2022]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2023" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2023" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2023" xlink:to="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2023_lbl_514cec" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseFor2023_lbl_514cec" xml:lang="en-US">2023</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LiabilitiesForAllocatedLossAndLossAdjustmentExpensesNetOfReinsurance" xlink:label="king_LiabilitiesForAllocatedLossAndLossAdjustmentExpensesNetOfReinsurance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LiabilitiesForAllocatedLossAndLossAdjustmentExpensesNetOfReinsurance" xlink:to="king_LiabilitiesForAllocatedLossAndLossAdjustmentExpensesNetOfReinsurance_lbl_1dcc67" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LiabilitiesForAllocatedLossAndLossAdjustmentExpensesNetOfReinsurance_lbl_1dcc67" xml:lang="en-US">Liabilities for loss and loss adjustment expenses, net of reinsurance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments" xlink:label="us-gaap_ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments" xlink:to="us-gaap_ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments_lbl_790f01" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments_lbl_790f01" xml:lang="en-US">Total reinsurance recoverable on unpaid losses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet" xlink:label="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet" xlink:to="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet_lbl_4d1cff" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet_lbl_4d1cff" xml:lang="en-US">Unallocated loss adjustment expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalGrossLiabilityForLossAndLossAdjustmentExpenseReserves" xlink:label="king_TotalGrossLiabilityForLossAndLossAdjustmentExpenseReserves" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalGrossLiabilityForLossAndLossAdjustmentExpenseReserves" xlink:to="king_TotalGrossLiabilityForLossAndLossAdjustmentExpenseReserves_lbl_6f6abb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalGrossLiabilityForLossAndLossAdjustmentExpenseReserves_lbl_6f6abb" xml:lang="en-US">Total gross liability for loss and LAE reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="us-gaap_StatementBusinessSegmentsAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementBusinessSegmentsAxis" xlink:to="us-gaap_StatementBusinessSegmentsAxis_lbl_6e0080" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl_6e0080" xml:lang="en-US">Statement Business Segments Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis" xlink:label="us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis" xlink:to="us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis_lbl_56c7b3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis_lbl_56c7b3" xml:lang="en-US">Liability For Catastrophe Claims By Catastrophic Event Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PropertyAndCasualtyPersonalInsuranceProductLinesMember" xlink:label="king_PropertyAndCasualtyPersonalInsuranceProductLinesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PropertyAndCasualtyPersonalInsuranceProductLinesMember" xlink:to="king_PropertyAndCasualtyPersonalInsuranceProductLinesMember_lbl_cfa768" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PropertyAndCasualtyPersonalInsuranceProductLinesMember_lbl_cfa768" xml:lang="en-US">Property And Casualty Personal Insurance Product Line [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CatastropheMember" xlink:label="us-gaap_CatastropheMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CatastropheMember" xlink:to="us-gaap_CatastropheMember_lbl_70916b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CatastropheMember_lbl_70916b" xml:lang="en-US">Catastrophe [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_QuotaShareTreatyPercentCeded" xlink:label="king_QuotaShareTreatyPercentCeded" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_QuotaShareTreatyPercentCeded" xlink:to="king_QuotaShareTreatyPercentCeded_lbl_2385db" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_QuotaShareTreatyPercentCeded_lbl_2385db" xml:lang="en-US">Quota share treaty percent ceded</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RiskRetained1" xlink:label="king_RiskRetained1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RiskRetained1" xlink:to="king_RiskRetained1_lbl_a82518" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_RiskRetained1_lbl_a82518" xml:lang="en-US">Risk retained on initial $1,000,000 of losses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LossesPerOccurrenceSubjectToQuotaShareReinsuranceCoverage" xlink:label="king_LossesPerOccurrenceSubjectToQuotaShareReinsuranceCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LossesPerOccurrenceSubjectToQuotaShareReinsuranceCoverage" xlink:to="king_LossesPerOccurrenceSubjectToQuotaShareReinsuranceCoverage_lbl_c966e9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LossesPerOccurrenceSubjectToQuotaShareReinsuranceCoverage_lbl_c966e9" xml:lang="en-US">Losses per occurrence subject to quota share reinsurance coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ExpirationDate1" xlink:label="king_ExpirationDate1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ExpirationDate1" xlink:to="king_ExpirationDate1_lbl_01010f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ExpirationDate1_lbl_01010f" xml:lang="en-US">Expiration</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ExcessOfLossCoverageAboveRiskRetained" xlink:label="king_ExcessOfLossCoverageAboveRiskRetained" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ExcessOfLossCoverageAboveRiskRetained" xlink:to="king_ExcessOfLossCoverageAboveRiskRetained_lbl_57d50e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ExcessOfLossCoverageAboveRiskRetained_lbl_57d50e" xml:lang="en-US">Excess of loss coverage and facultative facility coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_InExcessOf" xlink:label="king_InExcessOf" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_InExcessOf" xlink:to="king_InExcessOf_lbl_c719f1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_InExcessOf_lbl_c719f1" xml:lang="en-US">In excess of</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalReinsuranceCoveragePerOccurrence" xlink:label="king_TotalReinsuranceCoveragePerOccurrence" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalReinsuranceCoveragePerOccurrence" xlink:to="king_TotalReinsuranceCoveragePerOccurrence_lbl_40441e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalReinsuranceCoveragePerOccurrence_lbl_40441e" xml:lang="en-US">Total reinsurance coverage per occurrence</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LossesPerOccurrenceSubjectReinsuranceCoverage" xlink:label="king_LossesPerOccurrenceSubjectReinsuranceCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LossesPerOccurrenceSubjectReinsuranceCoverage" xlink:to="king_LossesPerOccurrenceSubjectReinsuranceCoverage_lbl_b1f6b3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LossesPerOccurrenceSubjectReinsuranceCoverage_lbl_b1f6b3" xml:lang="en-US">Losses per occurrence subject to reinsurance coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_Expiration1" xlink:label="king_Expiration1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_Expiration1" xlink:to="king_Expiration1_lbl_788ca5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_Expiration1_lbl_788ca5" xml:lang="en-US">Expiration Date</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_InitialLossSubjectToPersonalLinesQuotaShareTreaty" xlink:label="king_InitialLossSubjectToPersonalLinesQuotaShareTreaty" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_InitialLossSubjectToPersonalLinesQuotaShareTreaty" xlink:to="king_InitialLossSubjectToPersonalLinesQuotaShareTreaty_lbl_388c39" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_InitialLossSubjectToPersonalLinesQuotaShareTreaty_lbl_388c39" xml:lang="en-US">Initial loss subject to personal lines quota share treaty</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RiskRetainedPerCatastropheOccurrence" xlink:label="king_RiskRetainedPerCatastropheOccurrence" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RiskRetainedPerCatastropheOccurrence" xlink:to="king_RiskRetainedPerCatastropheOccurrence_lbl_cd20a2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_RiskRetainedPerCatastropheOccurrence_lbl_cd20a2" xml:lang="en-US">Risk retained per catastrophe occurrence</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_InExcessOf1" xlink:label="king_InExcessOf1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_InExcessOf1" xlink:to="king_InExcessOf1_lbl_895ff1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_InExcessOf1_lbl_895ff1" xml:lang="en-US">in excess of 1</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CatastropheLossCoverageInExcessOfQuotaShareCoverageWinterStormCoverage1" xlink:label="king_CatastropheLossCoverageInExcessOfQuotaShareCoverageWinterStormCoverage1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CatastropheLossCoverageInExcessOfQuotaShareCoverageWinterStormCoverage1" xlink:to="king_CatastropheLossCoverageInExcessOfQuotaShareCoverageWinterStormCoverage1_lbl_fdecde" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CatastropheLossCoverageInExcessOfQuotaShareCoverageWinterStormCoverage1_lbl_fdecde" xml:lang="en-US">Catastrophe loss coverage in excess of quota share coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ReinstatementPremiumProtection" xlink:label="king_ReinstatementPremiumProtection" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ReinstatementPremiumProtection" xlink:to="king_ReinstatementPremiumProtection_lbl_e98840" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ReinstatementPremiumProtection_lbl_e98840" xml:lang="en-US">Reinstatement premium protection</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="us-gaap_ConcentrationRiskByTypeAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskByTypeAxis" xlink:to="us-gaap_ConcentrationRiskByTypeAxis_lbl_707fae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskByTypeAxis_lbl_707fae" xml:lang="en-US">Concentration Risk By Type Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PersonalUmbrellaMember" xlink:label="king_PersonalUmbrellaMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PersonalUmbrellaMember" xlink:to="king_PersonalUmbrellaMember_lbl_d9906e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PersonalUmbrellaMember_lbl_d9906e" xml:lang="en-US">Personal Umbrella</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PercentCededFirstMillionDollarsOfCoverage" xlink:label="king_PercentCededFirstMillionDollarsOfCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PercentCededFirstMillionDollarsOfCoverage" xlink:to="king_PercentCededFirstMillionDollarsOfCoverage_lbl_f88841" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PercentCededFirstMillionDollarsOfCoverage_lbl_f88841" xml:lang="en-US">Percent ceded - first $1000000 of coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PercentCededExcessOfOneMillionOfCoverage" xlink:label="king_PercentCededExcessOfOneMillionOfCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PercentCededExcessOfOneMillionOfCoverage" xlink:to="king_PercentCededExcessOfOneMillionOfCoverage_lbl_689b5e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PercentCededExcessOfOneMillionOfCoverage_lbl_689b5e" xml:lang="en-US">Percent ceded - excess of $1,000,000 dollars of coverage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RiskRetained1" xlink:to="king_RiskRetained1_lbl_b83020" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_RiskRetained1_lbl_b83020" xml:lang="en-US">Risk retained</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalReinsuranceCoveragePerOccurrence" xlink:to="king_TotalReinsuranceCoveragePerOccurrence_lbl_0803cb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_TotalReinsuranceCoveragePerOccurrence_lbl_0803cb" xml:lang="en-US">Total reinsurance coverage per occurrence</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LossesPerOccurrenceSubjectToReinsuranceCoverage" xlink:to="king_LossesPerOccurrenceSubjectToReinsuranceCoverage_lbl_2fc711" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_LossesPerOccurrenceSubjectToReinsuranceCoverage_lbl_2fc711" xml:lang="en-US">Losses per occurrence subject to quota share reinsurance coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LossesPerOccurrenceSubjectToReinsuranceCoverage" xlink:label="king_LossesPerOccurrenceSubjectToReinsuranceCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LossesPerOccurrenceSubjectToReinsuranceCoverage" xlink:to="king_LossesPerOccurrenceSubjectToReinsuranceCoverage_lbl_6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LossesPerOccurrenceSubjectToReinsuranceCoverage_lbl_6" xml:lang="en-US">[Losses per occurrence subject to quota share reinsurance coverage]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ExpirationDate" xlink:label="king_ExpirationDate" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ExpirationDate" xlink:to="king_ExpirationDate_lbl_721efc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ExpirationDate_lbl_721efc" xml:lang="en-US">Expiration date</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InsuranceCommissions" xlink:label="us-gaap_InsuranceCommissions" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InsuranceCommissions" xlink:to="us-gaap_InsuranceCommissions_lbl_8b6586" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InsuranceCommissions_lbl_8b6586" xml:lang="en-US">Provisional ceding commissions earned</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ContingentCedingCommissionsEarned" xlink:label="king_ContingentCedingCommissionsEarned" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ContingentCedingCommissionsEarned" xlink:to="king_ContingentCedingCommissionsEarned_lbl_f39ef4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ContingentCedingCommissionsEarned_lbl_f39ef4" xml:lang="en-US">Contingent ceding commissions earned</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalCommissionsEarned" xlink:label="king_TotalCommissionsEarned" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalCommissionsEarned" xlink:to="king_TotalCommissionsEarned_lbl_a50362" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalCommissionsEarned_lbl_a50362" xml:lang="en-US">Total commissions earned</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis" xlink:label="srt_RangeAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeAxis" xlink:to="srt_RangeAxis_lbl_2b850b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeAxis_lbl_2b850b" xml:lang="en-US">Range [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ReinstatementPremiumProtectionMember" xlink:label="king_ReinstatementPremiumProtectionMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ReinstatementPremiumProtectionMember" xlink:to="king_ReinstatementPremiumProtectionMember_lbl_db1b96" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ReinstatementPremiumProtectionMember_lbl_db1b96" xml:lang="en-US">Reinstatement Premium Protection [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PersonalLinesMember" xlink:label="king_PersonalLinesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PersonalLinesMember" xlink:to="king_PersonalLinesMember_lbl_6d1abd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PersonalLinesMember_lbl_6d1abd" xml:lang="en-US">Personal Lines</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember" xlink:label="srt_MinimumMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl_5d483b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MinimumMember_lbl_5d483b" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember" xlink:label="srt_MaximumMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember_lbl_2a0416" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MaximumMember_lbl_2a0416" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ReinsuranceDescription" xlink:label="king_ReinsuranceDescription" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ReinsuranceDescription" xlink:to="king_ReinsuranceDescription_lbl_534bb9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ReinsuranceDescription_lbl_534bb9" xml:lang="en-US">Reinsurance description</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetContingentCedingCommissionsPayable" xlink:label="king_NetContingentCedingCommissionsPayable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetContingentCedingCommissionsPayable" xlink:to="king_NetContingentCedingCommissionsPayable_lbl_43e933" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetContingentCedingCommissionsPayable_lbl_43e933" xml:lang="en-US">Net contingent ceding commissions payable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnSaleOfInsuranceBlock" xlink:label="us-gaap_GainLossOnSaleOfInsuranceBlock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfInsuranceBlock" xlink:to="us-gaap_GainLossOnSaleOfInsuranceBlock_lbl_fc7041" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnSaleOfInsuranceBlock_lbl_fc7041" xml:lang="en-US">Incurred losses and loss adjustment expenses are net of reinsurance recoveries under reinsurance contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PriorYearLossDevelopment" xlink:label="king_PriorYearLossDevelopment" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PriorYearLossDevelopment" xlink:to="king_PriorYearLossDevelopment_lbl_79e486" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PriorYearLossDevelopment_lbl_79e486" xml:lang="en-US">Prior year loss development</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ReinsuranceContracts" xlink:label="king_ReinsuranceContracts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ReinsuranceContracts" xlink:to="king_ReinsuranceContracts_lbl_2df7f8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ReinsuranceContracts_lbl_2df7f8" xml:lang="en-US">Reinsurance contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ExcessOfCatastropheCoverage" xlink:label="king_ExcessOfCatastropheCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ExcessOfCatastropheCoverage" xlink:to="king_ExcessOfCatastropheCoverage_lbl_a22a58" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ExcessOfCatastropheCoverage_lbl_a22a58" xml:lang="en-US">Excess of catastrophe coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ReinstatementOfPremiumProtectionAmount" xlink:label="king_ReinstatementOfPremiumProtectionAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ReinstatementOfPremiumProtectionAmount" xlink:to="king_ReinstatementOfPremiumProtectionAmount_lbl_40f3b9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ReinstatementOfPremiumProtectionAmount_lbl_40f3b9" xml:lang="en-US">Reinstatement of premium protection, amount</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LossInExcessCoverageDescription" xlink:label="king_LossInExcessCoverageDescription" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LossInExcessCoverageDescription" xlink:to="king_LossInExcessCoverageDescription_lbl_de2129" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LossInExcessCoverageDescription_lbl_de2129" xml:lang="en-US">Loss in excess coverage description</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SingleRiskCoverage" xlink:label="king_SingleRiskCoverage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SingleRiskCoverage" xlink:to="king_SingleRiskCoverage_lbl_da117e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SingleRiskCoverage_lbl_da117e" xml:lang="en-US">Single risk coverage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DirectLoss" xlink:label="king_DirectLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DirectLoss" xlink:to="king_DirectLoss_lbl_3cf654" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DirectLoss_lbl_3cf654" xml:lang="en-US">Direct loss</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NotesTwoThousandTwentyTwoMember" xlink:label="king_NotesTwoThousandTwentyTwoMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NotesTwoThousandTwentyTwoMember" xlink:to="king_NotesTwoThousandTwentyTwoMember_lbl_b33deb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NotesTwoThousandTwentyTwoMember_lbl_b33deb" xml:lang="en-US">2022 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtMember" xlink:label="us-gaap_DebtMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtMember" xlink:to="us-gaap_DebtMember_lbl_9a936b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtMember_lbl_9a936b" xml:lang="en-US">Equipment Financing [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtCurrent" xlink:to="us-gaap_DebtCurrent_lbl_fde1ae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtCurrent_lbl_fde1ae" xml:lang="en-US">Debt</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtCurrent" xlink:label="us-gaap_DebtCurrent" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtCurrent" xlink:to="us-gaap_DebtCurrent_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtCurrent_lbl_2" xml:lang="en-US">[Debt, Current]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis" xlink:label="us-gaap_DebtInstrumentAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentAxis_lbl_3f2eed" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentAxis_lbl_3f2eed" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="us-gaap_ClassOfWarrantOrRightAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightAxis_lbl_04a905" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl_04a905" xml:lang="en-US">Class Of Warrant Or Right Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SeniorUnsecuredNotesMember" xlink:label="king_SeniorUnsecuredNotesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SeniorUnsecuredNotesMember" xlink:to="king_SeniorUnsecuredNotesMember_lbl_14e13c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SeniorUnsecuredNotesMember_lbl_14e13c" xml:lang="en-US">Senior Unsecured Notes [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WarrantsMember" xlink:label="king_WarrantsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WarrantsMember" xlink:to="king_WarrantsMember_lbl_e81532" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WarrantsMember_lbl_e81532" xml:lang="en-US">Warrants [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_IssuanceCostsMember" xlink:label="king_IssuanceCostsMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_IssuanceCostsMember" xlink:to="king_IssuanceCostsMember_lbl_2b9a73" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_IssuanceCostsMember_lbl_2b9a73" xml:lang="en-US">Issuance costs [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DebtInstrumentLongTermDebt" xlink:label="king_DebtInstrumentLongTermDebt" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DebtInstrumentLongTermDebt" xlink:to="king_DebtInstrumentLongTermDebt_lbl_9b93f3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DebtInstrumentLongTermDebt_lbl_9b93f3" xml:lang="en-US">Long-term debt, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DebtInstrumentLongTermDebt" xlink:to="king_DebtInstrumentLongTermDebt_lbl_1e26a1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="king_DebtInstrumentLongTermDebt_lbl_1e26a1" xml:lang="en-US">Long-term debt, net</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DecemberThirtyTwentyTwentyTwoToTwentyNineDecemberTwentyTwentyThreeMember" xlink:label="king_DecemberThirtyTwentyTwentyTwoToTwentyNineDecemberTwentyTwentyThreeMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DecemberThirtyTwentyTwentyTwoToTwentyNineDecemberTwentyTwentyThreeMember" xlink:to="king_DecemberThirtyTwentyTwentyTwoToTwentyNineDecemberTwentyTwentyThreeMember_lbl_19efc0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DecemberThirtyTwentyTwentyTwoToTwentyNineDecemberTwentyTwentyThreeMember_lbl_19efc0" xml:lang="en-US">December 30, 2022 to December 29, 2023</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DecemberThirtyTwentyTwentyThreeToTwentyNineSepTwentyTwentyFourMember" xlink:label="king_DecemberThirtyTwentyTwentyThreeToTwentyNineSepTwentyTwentyFourMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DecemberThirtyTwentyTwentyThreeToTwentyNineSepTwentyTwentyFourMember" xlink:to="king_DecemberThirtyTwentyTwentyThreeToTwentyNineSepTwentyTwentyFourMember_lbl_a3a2b6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DecemberThirtyTwentyTwentyThreeToTwentyNineSepTwentyTwentyFourMember_lbl_a3a2b6" xml:lang="en-US">December 30, 2023 to September 29, 2024</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SepThirtyTwentyTwentyFourToTwentyNineDecTwentyTwentyFourMember" xlink:label="king_SepThirtyTwentyTwentyFourToTwentyNineDecTwentyTwentyFourMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SepThirtyTwentyTwentyFourToTwentyNineDecTwentyTwentyFourMember" xlink:to="king_SepThirtyTwentyTwentyFourToTwentyNineDecTwentyTwentyFourMember_lbl_d13cea" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SepThirtyTwentyTwentyFourToTwentyNineDecTwentyTwentyFourMember_lbl_d13cea" xml:lang="en-US">September 30, 2024 to December 29, 2024</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateIncreaseDecrease" xlink:label="us-gaap_DebtInstrumentInterestRateIncreaseDecrease" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateIncreaseDecrease" xlink:to="us-gaap_DebtInstrumentInterestRateIncreaseDecrease_lbl_73d9d6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateIncreaseDecrease_lbl_73d9d6" xml:lang="en-US">Accrued and unpaid interest</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl_11e1f3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl_11e1f3" xml:lang="en-US">2023</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl_2" xml:lang="en-US">[Long-Term Debt, Maturity, Year One]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl_d52995" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl_d52995" xml:lang="en-US">2024</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl_7d00f0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl_7d00f0" xml:lang="en-US">2025</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl_9dffee" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl_9dffee" xml:lang="en-US">2026</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_lbl_8b7497" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_lbl_8b7497" xml:lang="en-US">2027</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross" xlink:to="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross_lbl_d4b654" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross_lbl_d4b654" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross" xlink:label="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross" xlink:to="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross_lbl_7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LongTermDebtMaturitiesRepaymentsOfPrincipalGross_lbl_7" xml:lang="en-US">[Total 1]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PurchasePriceContractualPaymentObligations" xlink:label="king_PurchasePriceContractualPaymentObligations" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PurchasePriceContractualPaymentObligations" xlink:to="king_PurchasePriceContractualPaymentObligations_lbl_b2bf05" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PurchasePriceContractualPaymentObligations_lbl_b2bf05" xml:lang="en-US">2027 purchase price</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LongTermDebtMaturitiesRepaymentsOfPrincipal" xlink:label="king_LongTermDebtMaturitiesRepaymentsOfPrincipal" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LongTermDebtMaturitiesRepaymentsOfPrincipal" xlink:to="king_LongTermDebtMaturitiesRepaymentsOfPrincipal_lbl_770bac" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LongTermDebtMaturitiesRepaymentsOfPrincipal_lbl_770bac" xml:lang="en-US">Total purchase price</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis" xlink:label="srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis" xlink:to="srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis_lbl_0d281b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis_lbl_0d281b" xml:lang="en-US">Federal Home Loan Bank Advances Branch Of F H L B Bank Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis" xlink:label="us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis" xlink:to="us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis_lbl_43e807" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis_lbl_43e807" xml:lang="en-US">Assets Sold Under Agreements To Repurchase Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_FederalHomeLoanBankOfNewYorkMember" xlink:label="srt_FederalHomeLoanBankOfNewYorkMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_FederalHomeLoanBankOfNewYorkMember" xlink:to="srt_FederalHomeLoanBankOfNewYorkMember_lbl_cc6f0a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_FederalHomeLoanBankOfNewYorkMember_lbl_cc6f0a" xml:lang="en-US">Federal Home Loan Bank of New York [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NotesTwentyTwentyTwoMember" xlink:label="king_NotesTwentyTwentyTwoMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NotesTwentyTwentyTwoMember" xlink:to="king_NotesTwentyTwentyTwoMember_lbl_40c94d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NotesTwentyTwentyTwoMember_lbl_40c94d" xml:lang="en-US">2022 Notes [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_EquipmentFinancingMember" xlink:label="king_EquipmentFinancingMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_EquipmentFinancingMember" xlink:to="king_EquipmentFinancingMember_lbl_c4af4a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_EquipmentFinancingMember_lbl_c4af4a" xml:lang="en-US">Equipment [Financing]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeniorNotesMember" xlink:label="us-gaap_SeniorNotesMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeniorNotesMember" xlink:to="us-gaap_SeniorNotesMember_lbl_01a305" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SeniorNotesMember_lbl_01a305" xml:lang="en-US">Senior Notes [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AdvancesLimitDescription" xlink:label="king_AdvancesLimitDescription" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AdvancesLimitDescription" xlink:to="king_AdvancesLimitDescription_lbl_57f7e9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AdvancesLimitDescription_lbl_57f7e9" xml:lang="en-US">Advances limit, description</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_MaximumAllowableAdvances" xlink:label="king_MaximumAllowableAdvances" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_MaximumAllowableAdvances" xlink:to="king_MaximumAllowableAdvances_lbl_021fdf" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_MaximumAllowableAdvances_lbl_021fdf" xml:lang="en-US">Maximum allowable advances</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl_6e1946" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl_6e1946" xml:lang="en-US">Principal balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl_591a36" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OperatingExpenses_lbl_591a36" xml:lang="en-US">Operating expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalTreasuryBills" xlink:label="king_TotalTreasuryBills" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalTreasuryBills" xlink:to="king_TotalTreasuryBills_lbl_34237b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalTreasuryBills_lbl_34237b" xml:lang="en-US">Total Treasury Bills</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityCollateralFeesAmount" xlink:label="us-gaap_LineOfCreditFacilityCollateralFeesAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityCollateralFeesAmount" xlink:to="us-gaap_LineOfCreditFacilityCollateralFeesAmount_lbl_c8a476" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityCollateralFeesAmount_lbl_c8a476" xml:lang="en-US">Collateral amount</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NoteholderExchangeDescription" xlink:label="king_NoteholderExchangeDescription" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NoteholderExchangeDescription" xlink:to="king_NoteholderExchangeDescription_lbl_8463fc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NoteholderExchangeDescription_lbl_8463fc" xml:lang="en-US">Description of noteholder exchange</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="us-gaap_DebtInstrumentFaceAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFaceAmount" xlink:to="us-gaap_DebtInstrumentFaceAmount_lbl_579411" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl_579411" xml:lang="en-US">Debt instrument, face amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl_fb4b7e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl_fb4b7e" xml:lang="en-US">Debt instrument, interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:to="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl_c85a60" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl_c85a60" xml:lang="en-US">Proceeds from issuance of unsecured notes</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DebtInstrumentTransactionCost" xlink:label="king_DebtInstrumentTransactionCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DebtInstrumentTransactionCost" xlink:to="king_DebtInstrumentTransactionCost_lbl_1004cb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DebtInstrumentTransactionCost_lbl_1004cb" xml:lang="en-US">Debt instrument, transaction cost</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DebtInstrumentYieldPercentage" xlink:label="king_DebtInstrumentYieldPercentage" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DebtInstrumentYieldPercentage" xlink:to="king_DebtInstrumentYieldPercentage_lbl_dfc842" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DebtInstrumentYieldPercentage_lbl_dfc842" xml:lang="en-US">Debt instrument, yield percentage</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TotalRentalRate" xlink:label="king_TotalRentalRate" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TotalRentalRate" xlink:to="king_TotalRentalRate_lbl_3f2f90" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TotalRentalRate_lbl_3f2f90" xml:lang="en-US">Total Rental Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnSalesOfAssets" xlink:label="us-gaap_GainsLossesOnSalesOfAssets" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnSalesOfAssets" xlink:to="us-gaap_GainsLossesOnSalesOfAssets_lbl_6a23dc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainsLossesOnSalesOfAssets_lbl_6a23dc" xml:lang="en-US">Sale of fixed assets</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_InterestRate" xlink:label="king_InterestRate" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_InterestRate" xlink:to="king_InterestRate_lbl_9ddfe4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_InterestRate_lbl_9ddfe4" xml:lang="en-US">Interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FinanceAmount" xlink:label="king_FinanceAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FinanceAmount" xlink:to="king_FinanceAmount_lbl_28fe7b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FinanceAmount_lbl_28fe7b" xml:lang="en-US">Finance amount principal</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForPurchaseOfOtherAssets1" xlink:label="us-gaap_PaymentsForPurchaseOfOtherAssets1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForPurchaseOfOtherAssets1" xlink:to="us-gaap_PaymentsForPurchaseOfOtherAssets1_lbl_a73328" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsForPurchaseOfOtherAssets1_lbl_a73328" xml:lang="en-US">Purchase of fixed assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalLeaseObligations" xlink:label="us-gaap_CapitalLeaseObligations" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalLeaseObligations" xlink:to="us-gaap_CapitalLeaseObligations_lbl_9de31f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CapitalLeaseObligations_lbl_9de31f" xml:lang="en-US">Collateral for the lease obligation</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumbers" xlink:label="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumbers" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumbers" xlink:to="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumbers_lbl_fda9b5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumbers_lbl_fda9b5" xml:lang="en-US">Number of options outstanding, ending</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SharebasedcompensationarrangementbysharebasedpaymentawardoptionsoutstandingnumberofoptionsOutstandinbeggining" xlink:label="king_SharebasedcompensationarrangementbysharebasedpaymentawardoptionsoutstandingnumberofoptionsOutstandinbeggining" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SharebasedcompensationarrangementbysharebasedpaymentawardoptionsoutstandingnumberofoptionsOutstandinbeggining" xlink:to="king_SharebasedcompensationarrangementbysharebasedpaymentawardoptionsoutstandingnumberofoptionsOutstandinbeggining_lbl_7a4fd8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SharebasedcompensationarrangementbysharebasedpaymentawardoptionsoutstandingnumberofoptionsOutstandinbeggining_lbl_7a4fd8" xml:lang="en-US">Number of options outstanding, beggining</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NumberOfOptionsOutstandingVestedAndExercisable" xlink:label="king_NumberOfOptionsOutstandingVestedAndExercisable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NumberOfOptionsOutstandingVestedAndExercisable" xlink:to="king_NumberOfOptionsOutstandingVestedAndExercisable_lbl_26a3aa" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NumberOfOptionsOutstandingVestedAndExercisable_lbl_26a3aa" xml:lang="en-US">Number of options outstanding, vested and exercisable</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WeightedAverageRemainingContractualBeginningBalance" xlink:label="king_WeightedAverageRemainingContractualBeginningBalance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WeightedAverageRemainingContractualBeginningBalance" xlink:to="king_WeightedAverageRemainingContractualBeginningBalance_lbl_f3c439" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WeightedAverageRemainingContractualBeginningBalance_lbl_f3c439" xml:lang="en-US">Weighted Average Remaining Contractual, Beginning balance</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WeightedAverageRemainingContractualTermEndingBalance" xlink:label="king_WeightedAverageRemainingContractualTermEndingBalance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WeightedAverageRemainingContractualTermEndingBalance" xlink:to="king_WeightedAverageRemainingContractualTermEndingBalance_lbl_552836" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WeightedAverageRemainingContractualTermEndingBalance_lbl_552836" xml:lang="en-US">Weighted Average Remaining Contractual term, Ending balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_lbl_9d92b9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_lbl_9d92b9" xml:lang="en-US">Weighted Average Remaining Contractual life, vested and exercisable</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WeightedAverageExercisePriceBeginningBalance" xlink:label="king_WeightedAverageExercisePriceBeginningBalance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WeightedAverageExercisePriceBeginningBalance" xlink:to="king_WeightedAverageExercisePriceBeginningBalance_lbl_f9d0e4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WeightedAverageExercisePriceBeginningBalance_lbl_f9d0e4" xml:lang="en-US">Weighted average exercise price, Beginning balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl_c4e9ea" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl_c4e9ea" xml:lang="en-US">Weighted average exercise price, granted</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WeightedAverageExercisePriceExercised" xlink:label="king_WeightedAverageExercisePriceExercised" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WeightedAverageExercisePriceExercised" xlink:to="king_WeightedAverageExercisePriceExercised_lbl_1051cc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WeightedAverageExercisePriceExercised_lbl_1051cc" xml:lang="en-US">Weighted average exercise price, Exercised</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl_32e6e0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl_32e6e0" xml:lang="en-US">Weighted average exercise price, Forfeited</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WeightedAverageExercisePriceEndingBalance" xlink:label="king_WeightedAverageExercisePriceEndingBalance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WeightedAverageExercisePriceEndingBalance" xlink:to="king_WeightedAverageExercisePriceEndingBalance_lbl_2bf885" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WeightedAverageExercisePriceEndingBalance_lbl_2bf885" xml:lang="en-US">Weighted average exercise price, Ending balance</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WeightedAveragePricePerShareOutstandingVestedAndExercisable" xlink:label="king_WeightedAveragePricePerShareOutstandingVestedAndExercisable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WeightedAveragePricePerShareOutstandingVestedAndExercisable" xlink:to="king_WeightedAveragePricePerShareOutstandingVestedAndExercisable_lbl_fca28e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WeightedAveragePricePerShareOutstandingVestedAndExercisable_lbl_fca28e" xml:lang="en-US">Weighted Average Price per share outstanding, vested and exercisable</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AggregateIntrinsicValueVestedAndExercisable" xlink:label="king_AggregateIntrinsicValueVestedAndExercisable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AggregateIntrinsicValueVestedAndExercisable" xlink:to="king_AggregateIntrinsicValueVestedAndExercisable_lbl_c9026b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AggregateIntrinsicValueVestedAndExercisable_lbl_c9026b" xml:lang="en-US">Aggregate Intrinsic Value , vested and exercisable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis_lbl_457c77" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardTypeAxis_lbl_457c77" xml:lang="en-US">Award Type Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember" xlink:label="us-gaap_RestrictedStockMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockMember" xlink:to="us-gaap_RestrictedStockMember_lbl_608d3d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RestrictedStockMember_lbl_608d3d" xml:lang="en-US">Restricted Stock [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl_c0b1fe" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl_c0b1fe" xml:lang="en-US">Number of options outstanding, beginning | shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl_2" xml:lang="en-US">[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl_4b66d3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl_4b66d3" xml:lang="en-US">Granted shares</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl_7b6641" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl_7b6641" xml:lang="en-US">Vested shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl_4" xml:lang="en-US">[Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ForfeitedShares" xlink:label="king_ForfeitedShares" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ForfeitedShares" xlink:to="king_ForfeitedShares_lbl_b61ac0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ForfeitedShares_lbl_b61ac0" xml:lang="en-US">Forfeited shares</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl_001385" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl_001385" xml:lang="en-US">Number of options outstanding, ending | shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_lbl_7dd903" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_lbl_7dd903" xml:lang="en-US">Weighted Average Grant Date Fair Value per Share, granted</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_lbl_8b184d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_lbl_8b184d" xml:lang="en-US">Weighted Average Grant Date Fair Value per Share, vested</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue_lbl_c33550" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue_lbl_c33550" xml:lang="en-US">Weighted Average Grant Date Fair Value per Share, forfeited</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValuesEnding" xlink:label="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValuesEnding" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValuesEnding" xlink:to="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValuesEnding_lbl_d5588a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValuesEnding_lbl_d5588a" xml:lang="en-US">Weighted Average Grant Date Fair Value per Share, ending balance</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValues" xlink:label="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValues" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValues" xlink:to="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValues_lbl_130c85" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValues_lbl_130c85" xml:lang="en-US">Weighted Average Grant Date Fair Value per Share, beginning balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl_67824c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl_67824c" xml:lang="en-US">Aggregate Fair Value, beginning balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl_12" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl_12" xml:lang="en-US">[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested_lbl_df0ee4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested_lbl_df0ee4" xml:lang="en-US">Aggregate Fair Value, granted</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_lbl_eac686" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_lbl_eac686" xml:lang="en-US">Aggregate Fair Value, vested</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_lbl_14" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_lbl_14" xml:lang="en-US">[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeited" xlink:label="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeited" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeited" xlink:to="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeited_lbl_130682" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeited_lbl_130682" xml:lang="en-US">Aggregate Fair Value, forfeited</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValues" xlink:label="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValues" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValues" xlink:to="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValues_lbl_7498c1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValues_lbl_7498c1" xml:lang="en-US">Aggregate Fair Value, ending balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardDateAxis" xlink:label="us-gaap_AwardDateAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardDateAxis" xlink:to="us-gaap_AwardDateAxis_lbl_c63654" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardDateAxis_lbl_c63654" xml:lang="en-US">Award Date Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_TenMayTwoThousandsTwentyThreeMember" xlink:label="king_TenMayTwoThousandsTwentyThreeMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_TenMayTwoThousandsTwentyThreeMember" xlink:to="king_TenMayTwoThousandsTwentyThreeMember_lbl_0bc1a2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_TenMayTwoThousandsTwentyThreeMember_lbl_0bc1a2" xml:lang="en-US">10 May 2023 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsCommonStock" xlink:label="us-gaap_DividendsCommonStock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendsCommonStock" xlink:to="us-gaap_DividendsCommonStock_lbl_7882be" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DividendsCommonStock_lbl_7882be" xml:lang="en-US">Dividends declared</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_StockBasedCompensationForStockOptions" xlink:label="king_StockBasedCompensationForStockOptions" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_StockBasedCompensationForStockOptions" xlink:to="king_StockBasedCompensationForStockOptions_lbl_4d0209" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_StockBasedCompensationForStockOptions_lbl_4d0209" xml:lang="en-US">Stock based compensation for stock options</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue" xlink:label="us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue" xlink:to="us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue_lbl_03fe50" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue_lbl_03fe50" xml:lang="en-US">Net of estimated forfeitures of approximately</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_StockBasedCompensationForGrants" xlink:label="king_StockBasedCompensationForGrants" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_StockBasedCompensationForGrants" xlink:to="king_StockBasedCompensationForGrants_lbl_1bd297" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_StockBasedCompensationForGrants_lbl_1bd297" xml:lang="en-US">Stock based compensation for grants</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_StockBasedCompensationForGrantstotaling" xlink:label="king_StockBasedCompensationForGrantstotaling" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_StockBasedCompensationForGrantstotaling" xlink:to="king_StockBasedCompensationForGrantstotaling_lbl_f8f03f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_StockBasedCompensationForGrantstotaling_lbl_f8f03f" xml:lang="en-US">Stock based compensation for grants totataling</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_lbl_d96801" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_lbl_d96801" xml:lang="en-US">Weighted-average vesting period</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl_e586bc" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl_e586bc" xml:lang="en-US">Exercise price</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharePrice" xlink:label="us-gaap_SharePrice" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharePrice" xlink:to="us-gaap_SharePrice_lbl_fc2c7e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharePrice_lbl_fc2c7e" xml:lang="en-US">Closing price of common stock</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_WarrantsIssuedToPurchaseCommonStock" xlink:label="king_WarrantsIssuedToPurchaseCommonStock" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_WarrantsIssuedToPurchaseCommonStock" xlink:to="king_WarrantsIssuedToPurchaseCommonStock_lbl_b2c3e5" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_WarrantsIssuedToPurchaseCommonStock_lbl_b2c3e5" xml:lang="en-US">warrants issued to purchase common stock</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FairValueOfUnamortizedCompensationCost" xlink:label="king_FairValueOfUnamortizedCompensationCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FairValueOfUnamortizedCompensationCost" xlink:to="king_FairValueOfUnamortizedCompensationCost_lbl_3aee6d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FairValueOfUnamortizedCompensationCost_lbl_3aee6d" xml:lang="en-US">Fair value of unamortized compensation cost</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_MaximumSharePurchaseUnderEspp" xlink:label="king_MaximumSharePurchaseUnderEspp" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_MaximumSharePurchaseUnderEspp" xlink:to="king_MaximumSharePurchaseUnderEspp_lbl_1c49c6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_MaximumSharePurchaseUnderEspp_lbl_1c49c6" xml:lang="en-US">Maximum share purchase under ESPP</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:to="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_lbl_d8456b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_lbl_d8456b" xml:lang="en-US">Maximum share purchased by employee</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="us-gaap_SharesIssuedPricePerShare" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssuedPricePerShare" xlink:to="us-gaap_SharesIssuedPricePerShare_lbl_96e29e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl_96e29e" xml:lang="en-US">Price per share</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligation" xlink:label="us-gaap_PurchaseObligation" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PurchaseObligation" xlink:to="us-gaap_PurchaseObligation_lbl_edc471" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PurchaseObligation_lbl_edc471" xml:lang="en-US">Total purchase</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_lbl_3bc927" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl_3bc927" xml:lang="en-US">Purchase Of Warrants</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CommonStockShareAuthorized" xlink:label="king_CommonStockShareAuthorized" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CommonStockShareAuthorized" xlink:to="king_CommonStockShareAuthorized_lbl_04679c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CommonStockShareAuthorized_lbl_04679c" xml:lang="en-US">Common stock shares authorized</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl_9d2fae" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl_9d2fae" xml:lang="en-US">Share issued for offering period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl_89f8a7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl_89f8a7" xml:lang="en-US">Common stock shares authorized</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComponentsOfDeferredTaxAssetsAbstract" xlink:label="us-gaap_ComponentsOfDeferredTaxAssetsAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComponentsOfDeferredTaxAssetsAbstract" xlink:to="us-gaap_ComponentsOfDeferredTaxAssetsAbstract_lbl_909878" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComponentsOfDeferredTaxAssetsAbstract_lbl_909878" xml:lang="en-US">Deferred tax asset:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl_7b8604" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl_7b8604" xml:lang="en-US">Net operating loss carryovers (1)</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_ClaimsReserveDiscount" xlink:label="king_ClaimsReserveDiscount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_ClaimsReserveDiscount" xlink:to="king_ClaimsReserveDiscount_lbl_64b8a6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_ClaimsReserveDiscount_lbl_64b8a6" xml:lang="en-US">Claims reserve discount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsDeferredIncome" xlink:label="us-gaap_DeferredTaxAssetsDeferredIncome" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsDeferredIncome" xlink:to="us-gaap_DeferredTaxAssetsDeferredIncome_lbl_30b3db" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsDeferredIncome_lbl_30b3db" xml:lang="en-US">Unearned premium</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_DeferredCedingCommissionRevenuedDeferredTax" xlink:label="king_DeferredCedingCommissionRevenuedDeferredTax" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_DeferredCedingCommissionRevenuedDeferredTax" xlink:to="king_DeferredCedingCommissionRevenuedDeferredTax_lbl_b4cc08" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_DeferredCedingCommissionRevenuedDeferredTax_lbl_b4cc08" xml:lang="en-US">Deferred ceding commission revenues</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsUnrealizedLossesOnTradingSecurities" xlink:label="us-gaap_DeferredTaxAssetsUnrealizedLossesOnTradingSecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsUnrealizedLossesOnTradingSecurities" xlink:to="us-gaap_DeferredTaxAssetsUnrealizedLossesOnTradingSecurities_lbl_7dc85f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsUnrealizedLossesOnTradingSecurities_lbl_7dc85f" xml:lang="en-US">Net unrealized losses on securities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="us-gaap_DeferredTaxAssetsOther" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOther" xlink:to="us-gaap_DeferredTaxAssetsOther_lbl_2b3443" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsOther_lbl_2b3443" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="us-gaap_DeferredTaxAssetsGross" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxAssetsGross_lbl_2565d7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsGross_lbl_2565d7" xml:lang="en-US">Total deferred tax assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xlink:label="us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xlink:to="us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_lbl_f3bfb8" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_lbl_f3bfb8" xml:lang="en-US">Deferred tax liability:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesInvestments" xlink:label="us-gaap_DeferredTaxLiabilitiesInvestments" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesInvestments" xlink:to="us-gaap_DeferredTaxLiabilitiesInvestments_lbl_23cbd7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxLiabilitiesInvestments_lbl_23cbd7" xml:lang="en-US">Investment in KICO (2)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpense" xlink:label="us-gaap_DeferredTaxLiabilitiesDeferredExpense" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesDeferredExpense" xlink:to="us-gaap_DeferredTaxLiabilitiesDeferredExpense_lbl_f00582" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxLiabilitiesDeferredExpense_lbl_f00582" xml:lang="en-US">Deferred acquisition costs</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:to="us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_lbl_74853e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_lbl_74853e" xml:lang="en-US">Intangibles</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:to="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_lbl_c8836d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_lbl_c8836d" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:to="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_lbl_14" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_lbl_14" xml:lang="en-US">[Deferred Tax Liabilities, Property, Plant and Equipment]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="us-gaap_DeferredIncomeTaxLiabilities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxLiabilities" xlink:to="us-gaap_DeferredIncomeTaxLiabilities_lbl_ef7ae9" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxLiabilities_lbl_ef7ae9" xml:lang="en-US">Total deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_NetDeferredIncomeTaxLiabilityAsset" xlink:label="king_NetDeferredIncomeTaxLiabilityAsset" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_NetDeferredIncomeTaxLiabilityAsset" xlink:to="king_NetDeferredIncomeTaxLiabilityAsset_lbl_9b3cb3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_NetDeferredIncomeTaxLiabilityAsset_lbl_9b3cb3" xml:lang="en-US">Net deferred income tax (liability) asset</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_FederalNetOperatingLoss" xlink:label="king_FederalNetOperatingLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_FederalNetOperatingLoss" xlink:to="king_FederalNetOperatingLoss_lbl_ac6185" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_FederalNetOperatingLoss_lbl_ac6185" xml:lang="en-US">Federal only, NOL</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_StateNetOperatingLoss" xlink:label="king_StateNetOperatingLoss" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_StateNetOperatingLoss" xlink:to="king_StateNetOperatingLoss_lbl_546677" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_StateNetOperatingLoss_lbl_546677" xml:lang="en-US">State only (A)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance_lbl_498285" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl_498285" xml:lang="en-US">Valuation allowance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl_4" xml:lang="en-US">[Deferred Tax Assets, Valuation Allowance]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_StateNetOperatingLossExpirationPeriod" xlink:label="king_StateNetOperatingLossExpirationPeriod" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_StateNetOperatingLossExpirationPeriod" xlink:to="king_StateNetOperatingLossExpirationPeriod_lbl_d9447a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_StateNetOperatingLossExpirationPeriod_lbl_d9447a" xml:lang="en-US">State only A</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_StateOnlyNetOfValuationAllowance" xlink:label="king_StateOnlyNetOfValuationAllowance" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_StateOnlyNetOfValuationAllowance" xlink:to="king_StateOnlyNetOfValuationAllowance_lbl_43b628" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_StateOnlyNetOfValuationAllowance_lbl_43b628" xml:lang="en-US">State only, net of valuation allowance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" xlink:to="us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_lbl_f41ef7" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_lbl_f41ef7" xml:lang="en-US">Total deferred tax asset from net operating loss carryovers</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComputerEquipmentMember" xlink:label="us-gaap_ComputerEquipmentMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComputerEquipmentMember" xlink:to="us-gaap_ComputerEquipmentMember_lbl_b61da1" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComputerEquipmentMember_lbl_b61da1" xml:lang="en-US">Computer Equipment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="us-gaap_OperatingLossCarryforwards" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLossCarryforwards" xlink:to="us-gaap_OperatingLossCarryforwards_lbl_0600cd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLossCarryforwards_lbl_0600cd" xml:lang="en-US">Net operating loss carryover</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivableWithImputedInterestFaceAmount" xlink:label="us-gaap_ReceivableWithImputedInterestFaceAmount" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivableWithImputedInterestFaceAmount" xlink:to="us-gaap_ReceivableWithImputedInterestFaceAmount_lbl_dfd1f2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReceivableWithImputedInterestFaceAmount_lbl_dfd1f2" xml:lang="en-US">Consideration exchange principal amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFixedInterestRate" xlink:label="us-gaap_DerivativeFixedInterestRate" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeFixedInterestRate" xlink:to="us-gaap_DerivativeFixedInterestRate_lbl_806aa0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DerivativeFixedInterestRate_lbl_806aa0" xml:lang="en-US">Acquired equity interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetBackedSecuritiesAtCarryingValue" xlink:label="us-gaap_AssetBackedSecuritiesAtCarryingValue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetBackedSecuritiesAtCarryingValue" xlink:to="us-gaap_AssetBackedSecuritiesAtCarryingValue_lbl_aaa70f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetBackedSecuritiesAtCarryingValue_lbl_aaa70f" xml:lang="en-US">Original purchase surplus notes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestReceivable" xlink:label="us-gaap_InterestReceivable" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestReceivable" xlink:to="us-gaap_InterestReceivable_lbl_62101a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestReceivable_lbl_62101a" xml:lang="en-US">Untaxed interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender" xlink:label="us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender" xlink:to="us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender_lbl_5abe26" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender_lbl_5abe26" xml:lang="en-US">Deferred tax liability reduced</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsFrequentFlierLiability" xlink:label="us-gaap_DeferredTaxAssetsFrequentFlierLiability" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsFrequentFlierLiability" xlink:to="us-gaap_DeferredTaxAssetsFrequentFlierLiability_lbl_db299d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsFrequentFlierLiability_lbl_db299d" xml:lang="en-US">Deferred tax liability</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl_f9cdc0" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl_f9cdc0" xml:lang="en-US">Weighted average number of shares outstanding</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DilutiveSecurities" xlink:label="us-gaap_DilutiveSecurities" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DilutiveSecurities" xlink:to="us-gaap_DilutiveSecurities_lbl_e6771f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DilutiveSecurities_lbl_e6771f" xml:lang="en-US">Effect of dilutive securities, common share equivalents: Stock options</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits" xlink:label="us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits_lbl_c075aa" xml:lang="en-US">Effect of dilutive securities, common share equivalents: Restricted stock awards</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl_4e91f2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl_4e91f2" xml:lang="en-US">Weighted average number of shares outstanding, used for computing diluted earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseCost" xlink:label="us-gaap_LeaseCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_LeaseCost_lbl_68078b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseCost_lbl_68078b" xml:lang="en-US">Total lease cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseCost" xlink:label="us-gaap_OperatingLeaseCost" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseCost" xlink:to="us-gaap_OperatingLeaseCost_lbl_71e9c3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseCost_lbl_71e9c3" xml:lang="en-US">Operating leases</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CashPaymentsIncludedInMeasurementOfLeaseLiabilityInOperatingCashFlows" xlink:label="king_CashPaymentsIncludedInMeasurementOfLeaseLiabilityInOperatingCashFlows" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CashPaymentsIncludedInMeasurementOfLeaseLiabilityInOperatingCashFlows" xlink:to="king_CashPaymentsIncludedInMeasurementOfLeaseLiabilityInOperatingCashFlows_lbl_a2d1fb" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CashPaymentsIncludedInMeasurementOfLeaseLiabilityInOperatingCashFlows_lbl_a2d1fb" xml:lang="en-US">Cash payments included in the measurement of lease liability in operating cash flows</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MalpracticeLossContingencyDiscountRate" xlink:label="us-gaap_MalpracticeLossContingencyDiscountRate" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MalpracticeLossContingencyDiscountRate" xlink:to="us-gaap_MalpracticeLossContingencyDiscountRate_lbl_e73f6a" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MalpracticeLossContingencyDiscountRate_lbl_e73f6a" xml:lang="en-US">Discount rate</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_RemainingLeaseTermInYearsKICO" xlink:label="king_RemainingLeaseTermInYearsKICO" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_RemainingLeaseTermInYearsKICO" xlink:to="king_RemainingLeaseTermInYearsKICO_lbl_dd7faf" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_RemainingLeaseTermInYearsKICO_lbl_dd7faf" xml:lang="en-US">Remaining lease term in years in KICO</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl_49dcb4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl_49dcb4" xml:lang="en-US">2023</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl_2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl_2" xml:lang="en-US">[Operating Leases, Future Minimum Payments Due, Next 12 Months]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl_def67e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl_def67e" xml:lang="en-US">2024</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl_3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl_3" xml:lang="en-US">[Operating Leases, Future Minimum Payments, Due in Two Years]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl_eae670" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl_eae670" xml:lang="en-US">Total undiscounted lease payments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl_4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl_4" xml:lang="en-US">[Operating Leases, Future Minimum Payments Due]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_OperatingLeaseLiabilityLessPresentValueAdjustment" xlink:label="king_OperatingLeaseLiabilityLessPresentValueAdjustment" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_OperatingLeaseLiabilityLessPresentValueAdjustment" xlink:to="king_OperatingLeaseLiabilityLessPresentValueAdjustment_lbl_af461f" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_OperatingLeaseLiabilityLessPresentValueAdjustment_lbl_af461f" xml:lang="en-US">Less: present value adjustment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiability_lbl_6e61a3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingLeaseLiability_lbl_6e61a3" xml:lang="en-US">Operating lease liability</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiability" xlink:label="us-gaap_OperatingLeaseLiability" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiability_lbl_6" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiability_lbl_6" xml:lang="en-US">[Operating Lease, Liability]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="us-gaap_RelatedPartyTransactionAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionAxis_lbl_3ffa69" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl_3ffa69" xml:lang="en-US">Related Party Transaction [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAxis" xlink:label="srt_RestatementAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RestatementAxis" xlink:to="srt_RestatementAxis_lbl_28f766" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RestatementAxis_lbl_28f766" xml:lang="en-US">Restatement Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_CosiLeaseMember" xlink:label="king_CosiLeaseMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_CosiLeaseMember" xlink:to="king_CosiLeaseMember_lbl_da0ca2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_CosiLeaseMember_lbl_da0ca2" xml:lang="en-US">Cosi Lease [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_BarryGoldsteinPresidentChiefExecutiveOfficerandExecutiveChairmanoftheBoardMember" xlink:label="king_BarryGoldsteinPresidentChiefExecutiveOfficerandExecutiveChairmanoftheBoardMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_BarryGoldsteinPresidentChiefExecutiveOfficerandExecutiveChairmanoftheBoardMember" xlink:to="king_BarryGoldsteinPresidentChiefExecutiveOfficerandExecutiveChairmanoftheBoardMember_lbl_bb8404" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_BarryGoldsteinPresidentChiefExecutiveOfficerandExecutiveChairmanoftheBoardMember_lbl_bb8404" xml:lang="en-US">Barry Goldstein, President, Chief Executive Officer and Executive Chairman of the Board [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_EmploymentAgreementMember" xlink:label="king_EmploymentAgreementMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_EmploymentAgreementMember" xlink:to="king_EmploymentAgreementMember_lbl_d450e4" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_EmploymentAgreementMember_lbl_d450e4" xml:lang="en-US">Employment Agreement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_AmendedEmploymentAgreementMember" xlink:label="king_AmendedEmploymentAgreementMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_AmendedEmploymentAgreementMember" xlink:to="king_AmendedEmploymentAgreementMember_lbl_46dce3" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_AmendedEmploymentAgreementMember_lbl_46dce3" xml:lang="en-US">Amended Employment Agreement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_JanuaryTwoThousandTwentyMember" xlink:label="king_JanuaryTwoThousandTwentyMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_JanuaryTwoThousandTwentyMember" xlink:to="king_JanuaryTwoThousandTwentyMember_lbl_5b7371" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_JanuaryTwoThousandTwentyMember_lbl_5b7371" xml:lang="en-US">January 2020 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_MrGoldsteinMember" xlink:label="king_MrGoldsteinMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_MrGoldsteinMember" xlink:to="king_MrGoldsteinMember_lbl_61a2f2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_MrGoldsteinMember_lbl_61a2f2" xml:lang="en-US">Barry GoldsteinMr. Goldstein [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl_6cb36c" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="srt_MinimumMember_lbl_6cb36c" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_GoldenEmloymentAgreementMember" xlink:label="king_GoldenEmloymentAgreementMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_GoldenEmloymentAgreementMember" xlink:to="king_GoldenEmloymentAgreementMember_lbl_3643b2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_GoldenEmloymentAgreementMember_lbl_3643b2" xml:lang="en-US">Golden Emloyment Agreement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_MeryGoldenChiefOperatingOfficerMember" xlink:label="king_MeryGoldenChiefOperatingOfficerMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_MeryGoldenChiefOperatingOfficerMember" xlink:to="king_MeryGoldenChiefOperatingOfficerMember_lbl_e560be" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_MeryGoldenChiefOperatingOfficerMember_lbl_e560be" xml:lang="en-US">Mery Golden Chief Operating Officer [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember_lbl_273dd2" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="srt_MaximumMember_lbl_273dd2" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_JanuaryTwoThousandTwentyThreeMember" xlink:label="king_JanuaryTwoThousandTwentyThreeMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_JanuaryTwoThousandTwentyThreeMember" xlink:to="king_JanuaryTwoThousandTwentyThreeMember_lbl_ba7814" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_JanuaryTwoThousandTwentyThreeMember_lbl_ba7814" xml:lang="en-US">January 2023 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="us-gaap_LeaseAndRentalExpense" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseAndRentalExpense" xlink:to="us-gaap_LeaseAndRentalExpense_lbl_726b7d" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseAndRentalExpense_lbl_726b7d" xml:lang="en-US">Rent expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_LeaseCosts" xlink:label="king_LeaseCosts" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_LeaseCosts" xlink:to="king_LeaseCosts_lbl_dce818" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_LeaseCosts_lbl_dce818" xml:lang="en-US">Lease costs</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross" xlink:to="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_lbl_ee2215" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_lbl_ee2215" xml:lang="en-US">Restricted stock issued</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl_172830" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensation_lbl_172830" xml:lang="en-US">Stock-based compensation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:to="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_lbl_6ea6dd" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_lbl_6ea6dd" xml:lang="en-US">Restricted stock value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalariesWagesAndOfficersCompensation" xlink:label="us-gaap_SalariesWagesAndOfficersCompensation" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalariesWagesAndOfficersCompensation" xlink:to="us-gaap_SalariesWagesAndOfficersCompensation_lbl_81d308" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SalariesWagesAndOfficersCompensation_lbl_81d308" xml:lang="en-US">Annual base salary</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PercentOfAveragePerAnnum" xlink:label="king_PercentOfAveragePerAnnum" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PercentOfAveragePerAnnum" xlink:to="king_PercentOfAveragePerAnnum_lbl_16fb85" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PercentOfAveragePerAnnum_lbl_16fb85" xml:lang="en-US">Percent of average per annum</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1" xlink:label="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1" xlink:to="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1_lbl_d8133e" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1_lbl_d8133e" xml:lang="en-US">Option purchase</link:label>
    <link:loc xlink:type="locator" xlink:href="king-20230630.xsd#king_PercentOfAnnualBonus" xlink:label="king_PercentOfAnnualBonus" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="king_PercentOfAnnualBonus" xlink:to="king_PercentOfAnnualBonus_lbl_2f21be" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="king_PercentOfAnnualBonus_lbl_2f21be" xml:lang="en-US">Percent of annual bonus</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="us-gaap_DefinedContributionPlanCostRecognized" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedContributionPlanCostRecognized" xlink:to="us-gaap_DefinedContributionPlanCostRecognized_lbl_c5be6b" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedContributionPlanCostRecognized_lbl_c5be6b" xml:lang="en-US">Contribution expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCompensationLiabilityCurrent" xlink:label="us-gaap_DeferredCompensationLiabilityCurrent" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCompensationLiabilityCurrent" xlink:to="us-gaap_DeferredCompensationLiabilityCurrent_lbl_92d677" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredCompensationLiabilityCurrent_lbl_92d677" xml:lang="en-US">Deferred compensation liability</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WorkersCompensationDiscountPercent" xlink:label="us-gaap_WorkersCompensationDiscountPercent" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WorkersCompensationDiscountPercent" xlink:to="us-gaap_WorkersCompensationDiscountPercent_lbl_eb4d46" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WorkersCompensationDiscountPercent_lbl_eb4d46" xml:lang="en-US">Deferred compensation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="us-gaap_SubsequentEventTypeAxis" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis_lbl_f76e94" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl_f76e94" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventMember" xlink:label="us-gaap_SubsequentEventMember" />
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl_6b0f31" xlink:type="arc" />
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