Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                3,110,707,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,173,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                408,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                440,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                91,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                335,322,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                350,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                17,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                74,811,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                5,522,345,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,693,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Buildings | — | — | 
| Buildings, net | 
                                                536,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                554,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                1,786,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,786,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                2,547,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,505,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                224,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                164,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Own-used assets | ||
| Intangible assets | 
                                                20,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | ||
| Investments and other assets | 
                                                349,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                374,140,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                2,917,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,897,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | ||
| Assets | 
                                                8,440,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,590,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                465,703,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                344,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                250,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                84,423,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                1,508,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,980,424,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                125,827,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                170,891,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                538,181,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                613,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | ||
| Provisions | ||
| Provision for bonuses | 
                                                159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                127,408,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                1,974,679,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,324,697,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                6,379,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,173,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                831,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                831,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                940,233,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                940,233,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                4,855,085,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,649,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -247,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -247,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                86,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                92,315,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                86,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                92,315,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                6,465,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,266,287,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                8,440,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,590,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |