Statement Of Changes In Net Assets
| Concept | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in net assets | ||||||||||||||||||||||||||||||
| Statement of changes in net assets | ||||||||||||||||||||||||||||||
| Net assets | 
                                                6,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,353,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,025,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,725,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,047,254,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                4,718,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,045,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,687,452,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,389,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,680,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,023,821,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,300,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,765,396,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,293,716,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,787,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,259,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | 
                                                -964,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -964,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -964,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,130,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,130,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,130,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                -54,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -964,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -961,955,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,277,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -961,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,277,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,386,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,130,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,386,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,258,424,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,258,424,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — |