Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                10,634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,199,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                1,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                4,301,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,542,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Prepaid expenses | 
                                                605,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                346,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                21,982,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,457,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                421,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                432,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,131,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                41,502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,663,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                47,696,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                44,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,331,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                23,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                204,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                3,418,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,383,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investment securities | 
                                                1,271,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,366,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,361,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Own-used assets | ||
| Tools, furniture and fixtures | — | — | 
| Tools, furniture and fixtures, net | 
                                                310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | ||
| Other assets | ||
| Assets | 
                                                89,199,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,535,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Other assets | — | — | 
| Liabilities and net assets | ||
| Non-current liabilities | 
                                                7,468,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,630,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                6,071,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,234,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                706,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                695,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                121,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                569,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                16,304,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                1,739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,827,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,004,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                23,772,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,423,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                64,384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                13,873,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,613,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                54,444,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -4,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                682,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                719,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                65,426,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                89,199,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,535,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Current portion of long-term borrowings | 
                                                4,585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,323,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Contract liabilities | 
                                                2,916,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                675,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                561,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Non-current liabilities | ||
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |