Semi-Annual Balance Sheet
| Concept | As at 2024-12-31 | As at 2024-06-30 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                6,190,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,682,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,189,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,185,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -572,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -578,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                11,692,041,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,305,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                6,983,797,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,119,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Tools, furniture and fixtures | — | — | 
| Tools, furniture and fixtures, net | 
                                                226,365,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                231,698,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                982,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                984,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                78,527,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,137,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                112,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                238,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                264,213,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill | 
                                                70,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                29,183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                112,607,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                949,395,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,074,966,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                543,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                625,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                298,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                345,463,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -5,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                8,172,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,458,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | ||
| Deferred assets | 
                                                9,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,356,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Bond issuance costs | 
                                                9,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,356,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                19,873,833,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,768,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                2,723,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,903,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                194,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                199,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                147,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                176,604,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                91,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                104,979,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                6,306,512,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,712,268,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                904,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,072,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                4,071,581,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,828,144,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Bonds payable | 
                                                644,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                1,951,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,163,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                498,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                372,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                10,378,094,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,540,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for retirement benefits for directors (and other officers) | 
                                                101,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                139,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                125,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                93,088,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                102,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                215,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                215,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | ||
| Capital surplus | 
                                                200,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                200,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                6,468,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,087,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -128,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -128,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                6,755,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,373,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                4,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                1,701,171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,803,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                9,495,739,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,228,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                19,873,833,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,768,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |