Consolidated Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                377,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                401,611,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                27,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Other | 
                                                1,155,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                945,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                1,155,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                945,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                1,559,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,350,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | ||
| Cash and deposits | 
                                                189,776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                338,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                2,316,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,635,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term loans receivable | 
                                                7,165,890,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,927,994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - other | 
                                                790,801,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                589,330,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                1,275,593,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                874,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Prepaid expenses | 
                                                72,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,094,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                69,510,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                12,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                11,892,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,462,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                13,452,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,812,876,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Deposits received | 
                                                12,330,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                1,018,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                909,809,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                297,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                205,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued expenses | 
                                                825,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                515,281,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                59,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                143,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                10,992,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                3,285,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,739,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Deferred tax liabilities | 
                                                79,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,670,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                21,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                101,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                101,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                3,386,607,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,840,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                10,057,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,964,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                1,491,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,491,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                1,749,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,749,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                6,823,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,730,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -7,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                7,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,042,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                7,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,042,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                10,065,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,972,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                13,452,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,812,876,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Valuation and translation adjustments |