Balance Sheet
| Concept | As at 2024-12-31 | As at 2024-06-30 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Non-current assets | 
                                                24,335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                19,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,010,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                7,244,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,244,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets, net | 
                                                326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                373,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                122,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                362,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                4,697,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,152,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,496,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Current assets | 
                                                6,776,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,006,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and deposits | 
                                                2,068,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,726,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                1,404,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                600,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                599,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                806,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Own-used assets | ||
| Leased assets | — | — | 
| Tools, furniture and fixtures | — | — | 
| Tools, furniture and fixtures, net | 
                                                585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | ||
| Current assets | ||
| Merchandise and finished goods | 
                                                740,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                1,364,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                912,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | ||
| Assets | 
                                                31,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,422,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - trade | 
                                                2,568,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,874,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                1,824,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,375,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued expenses | 
                                                2,510,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,916,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                112,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                105,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,960,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,895,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                9,696,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,079,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued consumption taxes | 
                                                477,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                801,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                117,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                9,065,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                4,313,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,115,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                568,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                3,175,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,164,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                152,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                152,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                18,761,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                12,134,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                4,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                9,337,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -1,540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                121,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                128,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                12,350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,427,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                31,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,422,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |