Consolidated Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                2,181,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,536,994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - other | 
                                                77,123,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                257,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                300,331,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                60,429,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,383,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                23,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,579,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                50,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -5,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                2,644,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,045,086,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                842,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                783,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                395,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                395,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Guarantee deposits | 
                                                299,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                301,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                113,787,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                111,913,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -17,727,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                380,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                328,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                149,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                36,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                194,184,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                148,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Other | — | — | 
| Intangible assets | ||
| Intangible assets | 
                                                67,137,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,118,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Assets | 
                                                3,487,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,828,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                1,701,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,791,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                45,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                16,675,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                339,740,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                346,310,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                2,308,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,594,753,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                367,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                378,889,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                823,912,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                839,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                105,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                351,140,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                362,172,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                3,132,503,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,434,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                342,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                381,099,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                699,573,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                699,573,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                -4,032,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,912,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -453,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -453,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                12,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                12,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                355,083,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                394,099,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                3,487,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,828,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Valuation and translation adjustments |