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 | 2024-04-01 to 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 | 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 | 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 | 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 | 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 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in net assets | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -46,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                312,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                317,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                580,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,224,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,762,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,651,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -46,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,580,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,756,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,393,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,638,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                6,866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                312,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,982,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                391,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,742,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                262,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                178,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                7,113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,545,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,087,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                905,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,909,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,981,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,047,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,617,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,015,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -2,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                1,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,843,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                54,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                564,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -757,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,091,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                189,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -2,534,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,356,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,161,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                364,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,635,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,643,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,910,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                266,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                266,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,618,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                267,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,098,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,595,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |