Consolidated Statement Of Changes In Equity
| Concept | 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 | 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 | 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 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 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 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 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 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                12,032,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,079,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,260,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,574,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                86,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                143,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,574,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,079,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,347,487,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,308,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,032,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,299,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                14,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,752,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -219,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                996,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                996,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -219,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,062,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,031,576,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,095,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                999,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -156,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                154,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,823,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,877,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                154,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,193,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                162,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,823,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                154,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                927,902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,243,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,265,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                927,902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,171,415,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | — | — | — | 
                                                166,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                166,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                166,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                166,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                137,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                137,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                137,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                137,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | 
                                                79,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                79,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                79,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -318,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -318,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -318,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                -2,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                5,693,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                6,135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -2,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                11,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                10,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,125,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                -2,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                315,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                246,291,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -136,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                261,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                267,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                315,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                299,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -136,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                252,426,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -136,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -309,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -172,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -181,446,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -318,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -309,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                11,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -161,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -170,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,125,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |