v3.26.1
BONDS (Details Narrative) - JPY (¥)
¥ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Corporate Bond Securities [Member]      
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]      
Interest expenses ¥ 1,996 ¥ 2,868 ¥ 2,991