Form: 20-F

Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

June 29, 2026

Exhibit 8.1
Subsidiaries of Coincheck Group N.V.
(as of June 29, 2026)
Legal NameJurisdiction of Incorporation
Coincheck, Inc.Japan
CCG Administrative Services, Inc.Delaware, United States
Next Finance Tech Co., LTD.Japan
Aplo SASFrance
3iQ Digital Holdings, Inc.Canada
3iQ CorpCanada