Statement Of Changes In Net Assets
| Concept | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in net assets | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -341,874,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,336,886,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,392,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,384,644,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,329,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,322,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                14,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -341,874,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,399,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,330,745,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                14,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -341,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                14,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                214,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,422,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,477,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,164,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -341,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,486,155,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,158,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,149,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                214,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,492,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,339,227,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -341,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,904,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -341,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,910,850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,275,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,895,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,345,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,330,903,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | 
                                                166,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                166,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                432,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                166,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                166,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                513,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                406,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                406,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                406,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                406,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -93,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -93,507,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,228,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -20,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -20,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -93,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -93,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,548,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                253,808,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                146,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                253,936,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                146,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                253,936,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                146,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                146,799,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |