Consolidated Statement Of Changes In Equity
| Concept | 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 | 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 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 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 | 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 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -259,581,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                408,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                408,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,267,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,090,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,408,161,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                416,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -259,581,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,090,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,243,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                378,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,384,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                864,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,824,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                16,676,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                408,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,090,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                16,204,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -147,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,068,423,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                354,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                354,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                354,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                378,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,330,941,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                689,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -147,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,090,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,815,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,466,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                349,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,558,071,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,179,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                833,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                378,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,090,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,090,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                454,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,732,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,137,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -184,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -184,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,192,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,936,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,932,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                633,337,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -302,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -211,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,356,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                1,356,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,356,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                909,592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                909,592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                909,592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                66,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                11,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                66,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,078,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                145,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                145,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -111,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -111,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                174,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                63,074,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                117,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                941,626,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,008,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,053,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                174,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                235,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                734,152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                271,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                420,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,078,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                36,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                145,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                235,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                697,604,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                879,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                36,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |