v3.26.1
General and administrative expenses (Details)
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 (¥)
DisclosureLineElements [Line Items]            
Depreciation $ 21,620 ¥ 153,914 ¥ 132,329 $ 36,031 ¥ 256,508 ¥ 146,013
Total general and administrative expenses 921,249 6,558,371 4,075,201 1,519,616 10,818,146 9,436,963
S G And A Expenses [Member]            
DisclosureLineElements [Line Items]            
Salaries and employee benefit       436,586 3,108,053 2,929,142
Service charge       651,206 4,635,935 3,402,078
Travel, Meals and Entertainment       52,476 373,576 850,851
Rental       257,421 1,832,580 1,185,443
Depreciation       22,425 159,642 127,339
Others       99,502 708,360 942,110
Total general and administrative expenses       $ 1,519,616 ¥ 10,818,146 ¥ 9,436,963
S G And A Expense [Member]            
DisclosureLineElements [Line Items]            
Salaries and employee benefit 260,452 1,854,155 1,552,223      
Service charge 317,997 2,263,819 759,786      
Travel, Meals and Entertainment 15,561 110,780 286,672      
Rental 202,536 1,441,855 694,961      
Depreciation 12,379 88,129 0      
Others 112,324 ¥ 799,633 ¥ 781,559      
Total general and administrative expenses $ 921,249