v3.26.1
Schedule of Reconciliation of Income Tax Expense (Details) - JPY (¥)
¥ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Income Tax Disclosure [Abstract]      
Income tax benefit at the statutory rate ¥ (469,463) ¥ (163,721) ¥ (202,694)
Increase (reduction) in taxes resulting from:      
Change in valuation allowance 186,057 193,402 175,731
Permanent difference (36,189) (19,400) (6,741)
Unrecognizable loss carryforwards 13,083
Non-deductible expenses 318,667 6,937 4,548
Rate difference (16,310) 17,892
Inhabitant and business tax (909) (1,818)
Other 928 1 (1)
Income tax expense