Quarter Period Consolidated Statement Of Comprehensive Income
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Quarter period consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                -1,339,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,290,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,339,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,339,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,339,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -853,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -853,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -828,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -853,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -853,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | 
                                                -1,290,303,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -828,212,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                -1,290,303,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -812,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -15,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |