v3.26.1
Operating leases (Tables)
 6 Months Ended 12 Months Ended
Sep. 30, 2025
Mar. 31, 2025
Operating Leases    
Schedule of ROU assets and lease liabilities
               
   As of 
   March 31,   September 30, 
   2025   2025 
   RMB   RMB   US$ 
   (Audited)   (Unaudited) 
Operating lease right-of-use assets   6,637,141    7,643,582    1,073,688 
                
Operating lease liabilities, current   1,814,071    1,770,413    248,688 
Operating lease liabilities, non-current   5,346,727    6,558,669    921,291 
Total operating lease liabilities   7,160,798    8,329,082    1,169,979 
               
   As of March 31, 
   2024   2025 
   RMB   RMB   US$ 
Operating lease right-of-use assets   5,469,166    6,637,141    932,314 
                
Operating lease liabilities, current   1,081,370    1,814,071    254,821 
Operating lease liabilities, non-current   4,859,692    5,346,727    751,050 
Total operating lease liabilities   5,941,062    7,160,798    1,005,871 
Schedule of weighted-average remaining lease term and discount rate of leases
          
   As of 
   March 31,   September 30, 
   2025   2025 
   (Audited)   (Unaudited) 
Weighted average remaining lease terms   4.73    3.01 
Weighted average discount rate   6.70%    6.70% 
          
   For the years ended March 31, 
   2024   2025 
Weighted average remaining lease terms   3.54    4.73 
Weighted average discount rate   6.70%    6.70% 
Schedule of operating lease liabilities
       
12 months ending March 31,   RMB  
    (Unaudited)  
Second half year of 2026     1,060,574  
2027     2,570,265  
2028     3,600,663  
2029     1,800,206  
2030 and after     252,442  
Total lease payment     9,284,150  
less: imputed interest     (955,068 )
Total lease liabilities     8,329,082  
     
12 months ending March 31,  RMB 
2026   2,218,648 
2027   2,176,115 
2028   2,379,569 
2029   1,247,764 
Total lease payment   8,022,096 
less: imputed interest   (861,298)
Total lease liabilities   7,160,798