Consolidated Statement Of Financial Position
| Concept | As at 2024-06-30 | As at 2024-06-30 | As at 2024-06-30 | As at 2024-06-30 | As at 2024-06-30 | As at 2024-06-30 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | As at 2023-06-30 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of financial position | ||||||||||||||||||||||||
| Statement of financial position | ||||||||||||||||||||||||
| Assets | ||||||||||||||||||||||||
| Current assets | ||||||||||||||||||||||||
| Cash and cash equivalents | — | — | — | — | 
                                                2,063,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,767,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                3,414,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,048,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
| Inventories | — | — | — | — | 
                                                61,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                36,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Other current assets | — | — | — | — | 
                                                60,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                62,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Current assets | — | — | — | — | 
                                                2,184,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,869,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Non-current assets | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | 
                                                139,449,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                129,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Other non-current assets | — | — | — | — | 
                                                18,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                17,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Non-current assets | — | — | — | — | 
                                                157,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                147,399,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Assets | — | — | — | — | 
                                                2,342,804,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,016,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Liabilities and equity | ||||||||||||||||||||||||
| Liabilities | ||||||||||||||||||||||||
| Current liabilities | ||||||||||||||||||||||||
| Other current liabilities | — | — | — | — | 
                                                12,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,347,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Current liabilities | — | — | — | — | 
                                                249,456,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                282,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Non-current liabilities | ||||||||||||||||||||||||
| Non-current liabilities | — | — | — | — | 
                                                64,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                87,194,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Liabilities | — | — | — | — | 
                                                313,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                370,108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity | ||||||||||||||||||||||||
| Equity attributable to owners of parent | ||||||||||||||||||||||||
| Share capital | — | — | — | — | 
                                                19,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,141,113,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Capital surplus | — | — | — | — | 
                                                27,848,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                27,638,335,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Retained earnings | — | — | — | — | 
                                                -24,392,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -25,670,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Other components of equity | — | — | — | — | 
                                                -1,445,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,462,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity attributable to owners of parent | — | — | — | — | 
                                                2,028,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,646,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity | 
                                                -24,392,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,028,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,848,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,028,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,445,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,462,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,646,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,670,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,646,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,141,113,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,638,335,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,606,236,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,440,165,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,925,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,123,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,363,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,363,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,949,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,066,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,949,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,526,853,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,463,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,180,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and equity | — | — | — | — | 
                                                2,342,804,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,016,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |