Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | 
                                                8,263,041,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,731,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and deposits | 
                                                398,774,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                448,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Notes receivable - trade | 
                                                9,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                972,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                848,709,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                24,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -862,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Land | 
                                                1,860,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,860,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                6,485,496,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,744,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets, net | 
                                                15,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,791,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                88,266,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                98,890,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                107,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                769,904,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                757,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -671,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -650,026,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Leased assets | 
                                                44,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -28,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                15,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                15,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other intangible assets | ||
| Investments and other assets | ||
| Investments and other assets | 
                                                260,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                248,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                232,056,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                219,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                30,487,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,821,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -1,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                6,762,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,010,904,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Current assets | ||
| Merchandise and finished goods | 
                                                1,358,218,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,336,108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                1,129,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,126,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                678,320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                437,391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | ||
| Assets | 
                                                15,025,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,742,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Accounts payable - other | 
                                                473,245,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                468,333,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                3,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,106,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                75,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,833,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                168,911,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                1,964,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,692,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued consumption taxes | 
                                                49,756,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                105,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                387,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                395,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                12,417,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                2,351,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,088,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                12,659,598,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,650,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                1,557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                1,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                9,740,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,730,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -203,641,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -203,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                14,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,210,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                12,673,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,653,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                15,025,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,742,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |