v3.25.2
Schedule of long-term investment (Details)
 12 Months Ended
Mar. 31, 2025
USD ($)
Mar. 31, 2025
CNY (¥)
Schedule of Equity Method Investments [Line Items]    
Balance as of March 31, 2024 $ 17,393,830  
Balance as of March 31, 2024 – Continuing operations 1,841,055  
Balance as of March 31, 2024 – Discontinued operations 15,552,775  
Share gain (loss) from equity investments 1,254,284  
Loss due to valuation (3,471,165)  
Impairment (1,819,678)  
Foreign currency translation adjustments (198,197)  
Balance as of March 31, 2025 13,159,074  
Balance as of March 31, 2025 – Continuing operations 13,159,074  
Balance as of March 31, 2025 – Discontinued operations  
Fujian Pingtan Ocean Fishery Group Co. Ltd [Member]    
Schedule of Equity Method Investments [Line Items]    
Balance as of March 31, 2024 15,552,775  
Balance as of March 31, 2024 – Continuing operations  
Balance as of March 31, 2024 – Discontinued operations 15,552,775  
Share gain (loss) from equity investments 1,265,357  
Loss due to valuation (3,471,165) ¥ (24,916,714)
Impairment  
Foreign currency translation adjustments (187,893)  
Balance as of March 31, 2025 13,159,074  
Balance as of March 31, 2025 – Continuing operations 13,159,074  
Balance as of March 31, 2025 – Discontinued operations  
Wuxi Talent [Member]    
Schedule of Equity Method Investments [Line Items]    
Balance as of March 31, 2024 1,841,055  
Balance as of March 31, 2024 – Continuing operations 1,841,055  
Balance as of March 31, 2024 – Discontinued operations  
Share gain (loss) from equity investments (11,073)  
Loss due to valuation  
Impairment (1,819,678)  
Foreign currency translation adjustments (10,304)  
Balance as of March 31, 2025  
Balance as of March 31, 2025 – Continuing operations  
Balance as of March 31, 2025 – Discontinued operations