Consolidated Balance Sheet
| Concept | As at 2025-05-31 | As at 2024-11-30 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Non-current assets | 
                                                4,074,913,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,803,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                1,377,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,108,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Guarantee deposits | 
                                                876,936,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                849,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -132,360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -229,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                632,545,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                488,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                2,682,607,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,682,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                425,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                480,781,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                2,256,739,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,201,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Other | — | — | 
| Intangible assets | ||
| Intangible assets | 
                                                15,183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                15,183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Current assets | ||
| Cash and deposits | 
                                                2,282,384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,804,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                1,335,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,028,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - other | 
                                                189,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                1,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                15,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                124,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                134,333,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                645,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                495,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -217,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -27,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                4,376,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,525,917,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | ||
| Business commencement expenses | 
                                                10,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | 
                                                10,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                8,461,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,345,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Non-current liabilities | ||
| Long-term borrowings | 
                                                1,502,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,147,481,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                365,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                351,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                2,148,821,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,780,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                281,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                282,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | ||
| Short-term borrowings | 
                                                133,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                213,348,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                210,994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                200,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                206,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                699,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                781,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued expenses | 
                                                533,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                466,657,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                139,998,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                465,532,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                237,884,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                3,328,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,081,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                5,477,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,861,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                2,958,612,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,467,778,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                306,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                306,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                844,972,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                844,972,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                2,190,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,699,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -383,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -383,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                24,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                2,983,604,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,483,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                8,461,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,345,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity |