Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Details) - Cash and Cash Equivalents [Member] ¥ in Thousands, $ in Thousands	Mar. 31, 2026 CNY (¥)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 CNY (¥)	Mar. 31, 2025 USD ($)
Schedule of Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	¥ 49,427		¥ 38,659
RMB [Member]
Schedule of Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	28,962	$ 28,962	25,373	$ 25,373
Hong Kong dollars [Member]
Schedule of Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	10	11
US$ [Member]
Schedule of Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	¥ 20,455	$ 2,956	¥ 13,286	$ 1,851