v3.26.1
Other (loss) income, net
6 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2025
CNY (¥)
Sep. 30, 2024
CNY (¥)
Mar. 31, 2025
USD ($)
Mar. 31, 2025
CNY (¥)
Mar. 31, 2024
CNY (¥)
Interim Period, Costs Not Allocable [Line Items]            
Other (loss)/income $ 69,676 ¥ 496,021 ¥ (15,631) $ (4,694) ¥ (33,416) ¥ 4,639,045
Debt Waived Income [Member]            
Interim Period, Costs Not Allocable [Line Items]            
Other (loss)/income 68,912 490,581      
Other Loss Income [Member]            
Interim Period, Costs Not Allocable [Line Items]            
Other (loss)/income $ 764 ¥ 5,440 ¥ (15,631)