Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||
| Segment information | ||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||
| Sales | ||||||
| Revenues from external customers | 
                                                930,068,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                283,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,213,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                451,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                258,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,487,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                134,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                134,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |