Statement Of Changes In Net Assets
| Concept | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in net assets | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                4,625,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,595,938,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,595,938,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,155,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -186,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,777,291,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,060,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                152,220,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                152,220,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,052,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,528,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,052,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,060,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -205,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,517,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                150,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                150,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,155,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,679,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,517,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,155,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,424,683,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,557,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,595,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,052,567,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,052,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -120,622,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,511,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,557,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,424,683,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | 
                                                128,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                128,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                128,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                128,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                126,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                126,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                126,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                78,206,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                78,206,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                97,691,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,079,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                67,258,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                93,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,802,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                84,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -84,391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,258,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                93,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — |