Quarterly Consolidated Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Quarterly consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                1,055,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                913,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                46,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,907,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -3,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,324,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                1,735,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,335,626,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                68,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Intangible assets | ||
| Goodwill | 
                                                2,220,820,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,567,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                2,320,148,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                256,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                146,700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                103,685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                10,026,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                101,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                2,535,509,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                398,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                4,271,483,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,733,835,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                50,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                948,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                405,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                2,211,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                212,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                2,211,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                212,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                3,159,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                618,319,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                540,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                540,269,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                531,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                531,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                -158,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -78,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -78,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                913,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,114,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                198,463,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                1,111,585,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,115,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                4,271,483,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,733,835,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |