Summary of Significant Accounting Policies (Details) - Schedule of currency exchange rates	May 31, 2022	Jul. 31, 2021
RMB: 1USD [Member]
Summary of Significant Accounting Policies (Details) - Schedule of currency exchange rates [Line Items]
Period-end spot rate	0.1499	0.1547
Average rate	0.1555	0.1521
HKD: 1USD [Member]
Summary of Significant Accounting Policies (Details) - Schedule of currency exchange rates [Line Items]
Period-end spot rate	0.1282	0.1282
Average rate	0.1282	0.1282