Statement Of Changes In 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 changes in equity | ||||
| Statement of changes in equity | ||||
| Net assets | — | 
                                                12,593,399,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,300,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Changes during period | ||||
| Profit (loss) | 
                                                2,450,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,005,446,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |