v3.26.1
Revenue (Details Narrative) - JPY (¥)
¥ in Thousands
6 Months Ended 12 Months Ended
Sep. 30, 2025
Mar. 31, 2025
Revenue from Contract with Customer [Abstract]    
Revenue expected recognize ¥ 882,983 ¥ 764,933
Revenue remaining performance obligation ¥ 444,955 ¥ 351,937