Statement Of Members' Equity
| Concept | 2023-04-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-03-31 | 2022-04-01 to 2022-12-31 | 
|---|---|---|---|---|
| Statement of members' equity | ||||
| Statement of members' equity | ||||
| Net assets | — | 
                                                84,079,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,898,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Changes during period | ||||
| Profit (loss) | 
                                                4,323,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,692,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |