Notes - Segment Information, Etc.
| Concept | 2023-09-01 to 2024-05-31 | 2023-09-01 to 2024-05-31 | 2023-09-01 to 2024-05-31 | 2023-09-01 to 2024-05-31 | 2023-09-01 to 2024-05-31 | 2023-09-01 to 2024-05-31 | 2022-09-01 to 2023-05-31 | 2022-09-01 to 2023-05-31 | 2022-09-01 to 2023-05-31 | 2022-09-01 to 2023-05-31 | 2022-09-01 to 2023-05-31 | 2022-09-01 to 2023-05-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                43,585,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                648,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,739,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,739,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,047,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,271,902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                528,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,863,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,863,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -13,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -30,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |