Consolidated Statement Of Profit Or Loss
| Concept | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|
| Consolidated statement of profit or loss | ||||||
| Statement of profit or loss | ||||||
| Cost of sales | — | 
                                                1,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,037,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Selling, general and administrative expenses | — | 
                                                176,736,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                171,782,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other income | — | 
                                                -5,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -730,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating profit (loss) | — | 
                                                -337,414,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -445,360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Finance income | — | 
                                                2,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Finance costs | — | 
                                                2,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) before tax | — | 
                                                -342,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -444,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) | 
                                                -342,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -342,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -342,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -444,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -444,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -444,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to | ||||||
| Owners of parent | — | 
                                                -342,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -444,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Earnings (loss) per share | ||||||
| Basic earnings (loss) per share | — | 
                                                -6.10
                                                
                                             | — | 
                                                -8.09
                                                
                                             | — | — | 
| Diluted earnings (loss) per share | — | 
                                                -6.10
                                                
                                             | — | 
                                                -8.09
                                                
                                             | — | — |