v3.26.1
Schedule of Related Party Transactions (Details) - JPY (¥)
¥ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Clustar, Inc. [Member]      
Related Party Transaction [Line Items]      
Advertising expenses ¥ 2,190
Samulion Factory, Inc. [Member]      
Related Party Transaction [Line Items]      
Provision of consulting services ¥ 9,786