Consolidated Statement Of Comprehensive Income
| Concept | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2023-02-01 to 2024-01-31 | 2022-02-01 to 2023-01-31 | 2022-02-01 to 2023-01-31 | 2022-02-01 to 2023-01-31 | 2022-02-01 to 2023-01-31 | 2022-02-01 to 2023-01-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                -1,437,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,437,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,437,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,349,644,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,437,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                788,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                788,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                883,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                788,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                788,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                13,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign currency translation adjustment | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | — | — | 
                                                13,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -2,549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | — | — | 
                                                -1,336,467,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                880,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                -1,336,467,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                880,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |