Statement Of Changes In Net Assets
| Concept | 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 | 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 | As at 2025-03-31 | As at 2025-03-31 | As at 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 | 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 | As at 2025-03-31 | As at 2025-03-31 | As at 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 | 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 | 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 | 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 | 2023-04-01 to 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 | 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 | 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 | 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 | As at 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 | 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 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 | 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 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in net assets | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -1,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,618,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,618,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,231,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                51,157,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,767,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,345,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,164,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                35,073,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,013,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                52,776,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,618,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                662,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                50,173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,089,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,821,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,821,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,821,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                44,702,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,029,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,767,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,745,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,786,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,474,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                51,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,091,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                507,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,811,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                507,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,463,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                507,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,445,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,445,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,767,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,450,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,955,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,274,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,951,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                3,251,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,251,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,251,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,251,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -309,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                781,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                568,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,614,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,218,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,427,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                458,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,217,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,531,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,093,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,218,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,294,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |