Consolidated Statement Of Cash Flows
| Concept | As at 2024-09-30 | 2024-04-01 to 2024-09-30 | As at 2024-03-31 | As at 2023-09-30 | 2023-04-01 to 2023-09-30 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|
| Consolidated statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Subtotal | — | 
                                                -575,685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -877,289,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | 
                                                -655,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -2,425,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,561,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -578,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -879,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,627,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -33,570,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | ||||||
| Proceeds from issuance of shares | — | 
                                                1,174,772,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                683,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                1,149,384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                677,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                570,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -236,192,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                1,098,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                527,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                881,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,117,635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |