Notes - Segment Information, Etc.
| Concept | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 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 | 
                                                6,369,097,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                834,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,276,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,258,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,369,097,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,291,379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,525,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                657,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,108,351,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,291,379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||
| Depreciation | 
                                                136,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                136,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                122,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                122,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                289,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                76,845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                197,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                289,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                127,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |