Statement Of Changes In Equity
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 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 | 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 | 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 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -97,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                469,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                477,053,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                13,100,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,321,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,106,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -97,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                629,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,010,220,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                313,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,231,221,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,696,470,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,428,211,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                13,570,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                469,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                11,251,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -97,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,160,878,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                205,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                205,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                211,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                313,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,574,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,847,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -97,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,735,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,665,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,070,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                859,634,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,456,878,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                462,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,458,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                313,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                365,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,145,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,871,972,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,647,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,208,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -97,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -97,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,334,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,549,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,781,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,411,259,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,058,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,260,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,260,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,260,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                5,067,844,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,260,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -239,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -239,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -239,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -239,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,851,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | 
                                                265,945,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                264,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -229,863,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                264,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                36,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                264,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                107,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                494,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                107,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                608,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                107,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                113,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                608,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                265,945,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                264,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -217,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -217,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,849,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,849,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -229,863,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,113,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,656,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,692,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,656,585,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,849,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                264,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,297,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,793,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,297,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,190,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                494,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                107,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                608,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                107,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,297,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                113,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,793,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,401,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |