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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Apr. 30, 2023
Accounting Policies [Abstract]  
Schedule of currency exchange rates
   April 30,
2023
 
Foreign currency  Period-end
spot rate
   Average rate 
RMB: 1USD   0.1447    0.1439 
HKD: 1USD   0.1282    0.1282