Semi-Annual Statement Of Cash Flows
| Concept | As at 2025-02-28 | 2024-03-01 to 2025-02-28 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2023-02-28 | 
|---|---|---|---|---|---|
| Semi-annual statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                -208,633,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -415,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -209,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -398,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                340,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -15,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -114,786,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Proceeds from short-term borrowings | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                547,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of short-term borrowings | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -797,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -29,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -71,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -250,171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -71,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -224,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -763,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                658,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                883,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,646,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |