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Summary of Principal Accounting Policies (Details) ¥ in Thousands |  | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 CNY (¥) | Mar. 31, 2025 CNY (¥) | Mar. 31, 2025 USD ($) | Sep. 30, 2024 CNY (¥) | Mar. 31, 2024 CNY (¥) | Mar. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Mar. 31, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jun. 06, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 28, 2023 CNY (¥) | Sep. 30, 2023 CNY (¥) | Oct. 26, 2022 USD ($)
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated deficits | ¥ (3,856,801) | ¥ (4,534,513) |  | ¥ (3,856,801) |  |  |  | $ (624,873,000) |  |  |  |  |  |
Net cash used in operating activities from continuing operations |  | (7,948) |  |  | ¥ (2,088) |  |  |  |  |  |  |  |  |
Current liabilities exceeded current assets, amount | 1,271,179 | 1,285,045 |  | 1,271,179 |  |  |  |  |  |  |  |  |  |
Revenues |  | ¥ 175,675 | $ 24,209,000 |  | 76,744 |  |  |  |  |  |  |  |  |
Principal amount (in Dollars) | $ |  |  |  |  |  |  |  |  |  | $ 27,342,000 |  |  |  |
Cash requirements (in Dollars) | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000
Reserve registered capital percentage |  | 10.00% | 10.00% |  |  |  |  |  |  |  |  |  |  |
Non-current restricted cash | 5,000 | ¥ 5,000 |  | 5,000 |  |  |  | 689,000 |  |  |  |  |  |
Allowance for credit loss | 191 | 40 |  | 191 |  |  |  |  |  |  |  |  |  |
Advances to suppliers | 13,745 | 15,258 |  | 13,745 |  |  |  |  |  |  |  |  |  |
Allowance for the doubtful accounts (in Dollars) | 191 | 40 |  | 191 |  |  |  |  |  |  |  |  | ¥ 277 |
Goodwill | 709,240 | 64,332 |  | 709,240 | 1,284,218 |  |  | $ 8,865,000 |  |  |  | ¥ 1,284,218 |  |
Impairment losses on goodwill | 574,978 | 644,908 | $ 88,871,000 | 574,978 |  |  |  |  |  |  |  |  |  |
Impairment of ROU assets (in Dollars) | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | 175,675 |  |  | 76,744 |  |  |  |  |  |  |  |  |
Cost of revenue |  | ¥ 171,379 | $ 23,617,000 |  | ¥ 72,555 |  |  |  |  |  |  |  |  |
Tax benefit largest amount |  | 50.00% | 50.00% |  |  |  |  |  |  |  |  |  |  |
CODM, description |  | The Company’s CODM has been identified as the Chief Executive Officer who reviews the unaudited condensed consolidated results of operations when making decisions about allocating resources and assessing performance of the Company. The Company operates and manages its business as a single operating segment. | The Company’s CODM has been identified as the Chief Executive Officer who reviews the unaudited condensed consolidated results of operations when making decisions about allocating resources and assessing performance of the Company. The Company operates and manages its business as a single operating segment. |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] |  | Chief Executive Officer [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |
Rendering services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value added tax percentage |  | 6.00% |  |  |  |  |  | 6.00% |  |  |  |  |  |
Cash [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-current restricted cash | ¥ 5,000 | ¥ 5,000 |  | ¥ 5,000 |  |  |  |  |  |  |  |  |  |
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest entities percentage of consolidate revenues (in Dollars) | $ |  |  |  |  |  | $ 1,531,000 |  |  |  |  |  |  |  |
Alpha Mind [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  | ¥ 1,284,218 |  |  |
United State [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange rate |  | 1.00 |  |  |  |  |  | 1.00 |  |  |  |  |  |
RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange rate |  | 7.2203 |  |  |  |  |  | 7.2203 |  |  |  |  |  |
RMB [Member] | PRC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Principal Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange rate |  | 7.2567 |  |  |  |  |  | 7.2567 |  |  |  |  |  |

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