INVENTORIES, NET (Details Narrative) - JPY (¥) ¥ in Thousands	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Inventory Disclosure [Abstract]
Capitalized interest	¥ 178,522	¥ 149,105

Amount of interest capitalized during the period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483013/835-20-50-1

Name:	us-gaap_InterestCostsCapitalized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration