Balance Sheet
| Concept | As at 2024-02-29 | As at 2023-08-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | 
                                                3,030,249,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,001,462,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and deposits | 
                                                2,299,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,360,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                189,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                160,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Supplies | 
                                                2,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                49,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                81,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -23,891,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,291,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                45,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                7,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                102,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | ||
| Investment securities | 
                                                280,417,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                344,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                463,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                522,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -5,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                188,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                179,930,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                516,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                671,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Current assets | ||
| Contract assets | 
                                                11,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,731,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                59,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | ||
| Assets | 
                                                3,546,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,672,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Non-current liabilities | ||
| Long-term borrowings | 
                                                168,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                243,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                230,561,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                38,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                36,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,512,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                349,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                330,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - trade | 
                                                17,612,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                152,801,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                155,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                13,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                120,630,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | ||
| Current portion of long-term borrowings | 
                                                37,510,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                4,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses for directors (and other officers) | 
                                                41,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                593,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                561,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                2,824,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,012,803,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                649,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                648,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                630,071,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                629,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                1,645,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,834,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -100,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -100,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                127,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                63,218,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,173,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                2,952,332,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,111,661,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                3,546,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,672,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |