v3.26.1
Schedule of Cost of Revenue by Major Source (Details) - JPY (¥)
¥ in Thousands
6 Months Ended
Sep. 30, 2025
Sep. 30, 2024
DisclosureCostOfRevenueLineItems [Line Items]    
Total ¥ 2,898 ¥ 2,396
Sales of Software [Member]    
DisclosureCostOfRevenueLineItems [Line Items]    
Total 590 377
Consulting and Support Services [Member]    
DisclosureCostOfRevenueLineItems [Line Items]    
Total ¥ 2,308 ¥ 2,019