Summary of Significant Accounting Policies - Schedule of Total Revenue by Geographic Areas (Details) - USD ($)	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Schedule of Total Revenue by Geographic Areas [Line Items]
Total revenue	$ 373,223,819	$ 210,119,238	$ 195,681,315
Hong Kong market [Member]
Schedule of Total Revenue by Geographic Areas [Line Items]
Revenue	235,960,125	104,685,311	100,982,052
Japan domestic market [Member]
Schedule of Total Revenue by Geographic Areas [Line Items]
Revenue	93,334,102	62,190,446	57,381,922
The United States market [Member]
Schedule of Total Revenue by Geographic Areas [Line Items]
Revenue	32,126,830	19,515,109	17,193,899
Other overseas markets [Member]
Schedule of Total Revenue by Geographic Areas [Line Items]
Revenue	$ 11,802,762	$ 23,728,372	$ 20,123,442

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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