Statement Of Changes In Net Assets
| Concept | As at 2024-05-31 | 2023-09-01 to 2024-05-31 | As at 2023-08-31 | As at 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | As at 2023-08-31 | As at 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | 2022-09-01 to 2023-08-31 | As at 2023-08-31 | As at 2022-08-31 | As at 2022-08-31 | As at 2022-08-31 | As at 2022-08-31 | 2021-09-01 to 2022-08-31 | As at 2022-08-31 | 2021-09-01 to 2022-08-31 | 2021-09-01 to 2022-08-31 | 2021-09-01 to 2022-08-31 | 2021-09-01 to 2022-08-31 | As at 2021-08-31 | As at 2021-08-31 | As at 2021-08-31 | As at 2021-08-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | ||||||||||||||||||||||||||
| Statement of changes in net assets | ||||||||||||||||||||||||||
| Net assets | 
                                                700,093,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                474,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                484,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                484,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                474,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                406,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                406,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                416,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                416,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                193,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                193,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                203,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||
| Profit (loss) | — | 
                                                215,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Total changes during period | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                213,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — |