Prepaid Expenses and Other Current Assets (Details) - Schedule of prepaid expenses and other current assets - USD ($)		Jul. 31, 2022	Jul. 31, 2021
Schedule Of Prepaid Expenses And Other Current Assets Abstract
Prepayment for advertising service fee	[1]	$ 600,000	$ 600,000
Prepaid service fees			20,000
Prepaid insurance service fee			58,151
Advance to vendors		10,000	10,000
Others		41,210	300
Total		$ 651,210	$ 688,451

[1] Prepayment for advertising services represent the advance payments made by the Company to a third party advertising company for producing advertising contents. These prepayments are typically expensed over the period when the services are performed.