Notes - Segment Information
| Concept | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|---|---|
| Notes - Segment information | ||||
| Segment information | ||||
| Other income and expenses, net | — | 
                                                12,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                14,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) before tax | — | 
                                                -1,332,852,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,489,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                1,541,907,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,016,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation and amortization | — | 
                                                65,646,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                87,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Impairment losses | — | 
                                                56,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                110,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |