CONDENSED FINANCIAL INFORMATION OF THE PARENT COMPANY (Details Narrative) - CNY (¥) ¥ in Millions	Sep. 30, 2025	Mar. 31, 2025
Condensed Financial Information Disclosure [Abstract]
Restricted include paid-in capital, capital surplus and statutory reserves, after intercompany eliminations	¥ 72.4	¥ 72.4

Amount of restricted includes paid-in capital, capital surplus, and statutory reserves, after intercompany eliminations.

No definition available.

Name:	WTO_RestrictedIncludePaidinCapitalCapitalSurplusAndStatutoryReservesAfterIntercompanyEliminations
Namespace Prefix:	WTO_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant