v3.26.1
Organizations and reorganizations (Details Narrative)
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 (¥)
Sep. 30, 2025
CNY (¥)
Mar. 31, 2025
CNY (¥)
Organization, Consolidation and Presentation of Financial Statements [Abstract]                
VIE contributed percentage           100.00%    
VIE settle obligations       $ 1,378,037 ¥ 10,000,000 ¥ 9,955,000    
Net loss $ (511,179) ¥ (3,639,083) ¥ 1,239,401 (1,030,317) (7,334,830) 11,565,768    
Net cash provided by operating activities (591,694) (4,212,269) 14,739,186 925,367 6,587,712 16,559,104    
Accumulated deficit 4,385,832     4,888,353   42,354,186 ¥ 31,222,736 ¥ 34,800,182
Net loss 511,179 3,639,083 (1,239,401) 1,030,317 7,334,830 (11,565,768)    
Net cash provided by operating activities $ 591,694 ¥ 4,212,269 ¥ (14,739,186) $ (925,367) ¥ (6,587,712) ¥ (16,559,104)