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Taxes (Details) - Schedule of Income Tax Provision at the Federal Statutory Rate and Effective Rate
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Schedule of Income Tax Provision at the Federal Statutory Rate and Effective Rate [Abstract]      
U.S. Statutory rates 21.00% 21.00% 21.00%
Foreign income not recognized in the U.S. (21.00%) (21.00%) (21.00%)
China income taxes 25.00% 25.00% 25.00%
Change in valuation allowance (25.00%) (25.00%) (25.00%)
Non-deductible expenses-permanent difference (1.50%) (1.90%) (52.40%)
Effective tax rate (1.50%) (1.90%) (52.40%)