Statement Of Changes In Equity
| Concept | 
                                    
                                        As at 2024-02-29  | 
                            
                                
                                    
                                        2023-12-01 to 2024-02-29  | 
                            
                                
                                    
                                        As at 2023-11-30  | 
                            
                                
                                    
                                        2022-12-01 to 2023-02-28  | 
                            
                        
|---|---|---|---|---|
| Statement of changes in equity | ||||
| Statement of changes in equity | ||||
| Net assets | 
                                        
                                             
                                                3,363,320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                3,253,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Changes during period | ||||
| Profit (loss) | — | 
                                        
                                             
                                                136,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                30,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     |