v3.26.1
Organizations and reorganizations (Details)
 6 Months Ended 12 Months Ended
Sep. 30, 2025
Mar. 31, 2025
Mingde Technology Hong Kong International Limited [Member]    
DisclosureLineElements [Line Items]    
Percentage of ownership 100.00% 100.00%
Principal activities Investment holding Investment holding
Place of incorporation Hong Kong, China Hong Kong, China
Date of incorporation Sep. 26, 2024 Sep. 26, 2024
Jiujjiang Rongganghui Technology Co Ltd [Member]    
DisclosureLineElements [Line Items]    
Percentage of ownership 100.00% 100.00%
Principal activities Technical support and consulting services Technical support and consulting services
Date of incorporation Feb. 21, 2025 Feb. 21, 2025
Zhejiang Fit One Internet Technology Co Ltd [Member]    
DisclosureLineElements [Line Items]    
Principal activities Membership health service platform Membership health service platform
Place of incorporation Hangzhou, Zhejiang province, China Hangzhou, Zhejiang province, China
Date of incorporation Dec. 31, 2019 Dec. 31, 2019
Legal ownership Variable interest Variable interest
Hangzhou Joymove Brand Operation And Management Co Ltd [Member]    
DisclosureLineElements [Line Items]    
Percentage of ownership 100.00% 100.00%
Principal activities Operating entity Operating entity
Place of incorporation Hangzhou, Zhejiang province, China Hangzhou, Zhejiang province, China
Date of incorporation May 19, 2021 May 19, 2021
Hangzhou Dazhika Technology Co Ltd [Member]    
DisclosureLineElements [Line Items]    
Percentage of ownership 98.00% 98.00%
Principal activities Operating entity Operating entity
Place of incorporation Hangzhou, Zhejiang province, China Hangzhou, Zhejiang province, China
Date of incorporation Mar. 27, 2024 Mar. 27, 2024
Dazhika Xiushui Technology Co Ltd [Member]    
DisclosureLineElements [Line Items]    
Percentage of ownership 100.00% 100.00%
Principal activities Operating entity Operating entity
Place of incorporation Hangzhou, Zhejiang province, China Hangzhou, Zhejiang province, China
Date of incorporation Jan. 10, 2025 Jan. 10, 2025
Ningbo Kunqian Technology Co Ltd [Member]    
DisclosureLineElements [Line Items]    
Percentage of ownership 80.00%  
Principal activities Operating entity  
Place of incorporation Ningbo, Zhejiang province, China  
Date of incorporation May 26, 2025