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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in net assets | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -589,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,447,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -139,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,536,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                23,693,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,368,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,065,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -589,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,771,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,931,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,039,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,868,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,970,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                26,141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,447,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -68,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                22,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,677,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,931,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                27,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,369,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,633,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,230,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,966,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,357,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                25,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,651,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,479,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,651,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,264,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,738,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,931,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,338,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,511,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                4,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                3,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,174,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -243,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,099,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -242,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -901,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,498,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,414,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,050,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -71,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,336,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,343,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,498,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -242,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                99,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                75,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,826,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,957,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                936,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,971,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                936,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                938,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,649,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |