Form: 20-F

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

July 30, 2025

Exhibit 8.1
Subsidiaries of Coincheck Group N.V.
(as of June 30, 2025)
Legal Name Jurisdiction of Incorporation
Coincheck, Inc. Japan
Next Finance Tech Co., Ltd. Japan
CCG Administrative Services, Inc. Delaware, U.S.A.