v3.26.1
Reverse Recapitalization and Acquisitions of subsidiaries - Assets and liabilities assumed (Details) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 01, 2026
Oct. 14, 2025
Mar. 14, 2025
Mar. 10, 2025
Disclosure of detailed information about business combination [line items]          
Other financial liabilities ¥ (2,347)        
Next Finance Tech Co, Ltd.          
Disclosure of detailed information about business combination [line items]          
Cash and cash equivalents       ¥ 29  
Other financial assets       3  
Other assets       2  
Property and equipment       2  
Crypto asset held (non-current)       21  
Other financial assets (non-current)       1  
Intangible assets       250  
Other financial liabilities       (5)  
Deferred tax liabilities       (79)  
Total identifiable net assets acquired       ¥ 225 ¥ 225
Aplo SAS          
Disclosure of detailed information about business combination [line items]          
Cash and cash equivalents     ¥ 278    
Crypto assets held     199    
Customer accounts receivable     19    
Other financial assets     150    
Other assets     11    
Property and equipment     2    
Other financial assets (non-current)     17    
Intangible assets     2,092    
Other financial liabilities     (128)    
Other current liabilities     (8)    
Other financial liabilities (non-current)     (244)    
Deferred tax liabilities     (523)    
Total identifiable net assets acquired     ¥ 1,865    
3iQ Corp          
Disclosure of detailed information about business combination [line items]          
Cash and cash equivalents   ¥ 1,544      
Customer accounts receivable   194      
Other financial assets   124      
Other current assets   101      
Total current assets   1,963      
Property and equipment   25      
Crypto asset held (non-current)   9      
Other financial assets (non-current)   62      
Intangible assets   6,745      
Deferred tax assets   53      
Total non-current assets   6,894      
Total assets   8,856      
Other financial liabilities   326      
Income taxes payable   34      
Other current liabilities   (2)      
Total current liabilities   362      
Total Liabilities   362      
Total identifiable net assets acquired   ¥ 8,494