Consolidated Statement Of Comprehensive Income
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                362,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                280,546,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                362,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                362,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                362,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                505,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                505,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                505,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                505,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                544,194,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Foreign currency translation adjustment | — | 
                                                -2,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                12,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | — | 
                                                -2,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                12,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income | — | 
                                                277,992,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                556,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                277,992,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                556,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |