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Organization and Principal Activities - Schedule of Company’s Major Subsidiaries (Details) | 6 Months Ended | 12 Months Ended
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Mar. 31, 2025 | Sep. 30, 2024
Linkage Holding (Hong Kong) Limited (“Linkage Holding”) [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Apr. 13, 2022 | [1] | Apr. 13, 2022 | [2]
Percentage of effective ownership | 100.00% | [1] | 100.00% | [2]
Principal Activities | Investing holding company | [1] | Investing holding company | [2]
Extend Co., Limited (“EXTEND”) [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Jun. 23, 2011 |  | Jun. 23, 2011 |
Percentage of effective ownership | 100.00% |  | 100.00% |
Principal Activities | Cross-border sales |  | Cross-border sales |
Linkage Electronic Commerce Limited (“Linkage Electronic”) [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Mar. 11, 2022 |  | Mar. 11, 2022 |
Percentage of effective ownership | 100.00% |  | 100.00% |
Principal Activities | Cross-border sales |  | Cross-border sales |
HQT Network Co., Limited (“HQT NETWORK”) [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Dec. 08, 2016 |  | Dec. 08, 2016 |
Percentage of effective ownership | 100.00% |  | 100.00% |
Principal Activities | Integrated E-commerce training services |  | Integrated E-commerce training services |
Linkage (Fujian) Network Technology Limited (“Linkage Tech” or “WFOE”) [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Nov. 24, 2022 |  | Nov. 24, 2022 |
Percentage of effective ownership | 100.00% |  | 100.00% |
Principal Activities | Investing holding company |  | Investing holding company |
Fujian Chuancheng Internet Technology Limited (formerly known as “Fujian Haishi Cross border Education Technology Limited”) [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Mar. 02, 2021 |  | Mar. 02, 2021 |
Percentage of effective ownership | 100.00% |  | 100.00% |
Principal Activities | Integrated E-commerce training services |  | Integrated E-commerce training services |
Fujian Chuancheng Digital Technology Limited [Member] |  |  |  |
Wholly owned subsidiaries |  |  |  |
Date of Incorporation | Jun. 01, 2021 |  | Jun. 01, 2021 |
Percentage of effective ownership | 100.00% |  | 100.00% |
Principal Activities | Cross-border sales |  | Cross-border sales |
[1] | Linkage Holding began operations since 2023 as an investing holding company.
[2] | Linkage Holding began operations since 2023 as an investing holding company.

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