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Statutory Reserves and Restricted Net Assets (Tables)
12 Months Ended
Aug. 31, 2022
Statutory Reserves and Restricted Net Assets [Abstract]  
​Schedule of restricted net asset include paid-in capital, additional paid-in capital, the statutory reserves and the retained earnings
   As of August 31, 
   2021   2022 
   RMB   RMB 
Paid-in capital   445,288    165,615 
Additional paid-in capital   6,239    9,556 
Statutory reserves   3,993    29,841 
Retained earnings   1,596,274    1,397,490 
Total   2,051,794    1,602,502