Statement Of Members' Equity
| Concept | 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 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 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 | 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 | 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 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 members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                50,879,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,394,863,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                8,408,322,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                301,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,356,218,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,204,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -39,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                12,126,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                821,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,731,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,731,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                819,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,211,902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                819,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                819,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -45,278,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,233,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                641,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                53,314,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                641,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,204,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                301,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,853,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,178,686,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,204,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,010,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,365,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                819,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                819,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -45,211,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,045,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,066,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                301,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | 
                                                411,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                411,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                411,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                411,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                337,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                337,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                337,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                337,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,090,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                1,090,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,090,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                320,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                320,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                320,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                175,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,090,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,435,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                182,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,090,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,546,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,273,233,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                320,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                166,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,886,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                166,626,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                487,417,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -66,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                168,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |