Quarterly Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Quarterly balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                1,609,507,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,738,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                1,957,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                96,339,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -18,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                2,287,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,572,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                34,668,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,957,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Tools, furniture and fixtures | 
                                                7,698,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,429,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -5,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Tools, furniture and fixtures, net | 
                                                2,675,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                308,787,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                318,776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Goodwill | 
                                                220,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                67,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                325,337,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                308,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                85,668,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term prepaid expenses | 
                                                1,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,242,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                166,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                141,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                71,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                668,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                646,064,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | 
                                                4,093,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | ||
| Share issuance costs | 
                                                2,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Bond issuance costs | 
                                                1,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                2,960,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,223,909,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Income taxes payable | 
                                                6,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                40,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,756,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                1,113,779,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,167,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Bonds payable | 
                                                80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                474,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                579,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                554,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                679,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                1,668,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,846,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                370,734,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                370,618,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                360,627,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                560,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                646,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                1,291,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,377,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                560,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                1,292,266,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,377,475,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                2,960,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,223,909,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |