Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Profit (loss) before income taxes | — | 
                                                -636,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                144,221,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | 
                                                35,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                39,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | 
                                                1,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                778,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | 
                                                -173,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -13,666,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | 
                                                69,643,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -46,582,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | 
                                                -12,248,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -5,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,088,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | 
                                                -245,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                68,815,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | 
                                                -966,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -60,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -42,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -301,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                28,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -12,001,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -43,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -12,001,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -54,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||
| Repayments of long-term borrowings | — | 
                                                -22,440,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -84,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from issuance of shares | — | 
                                                58,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,109,378,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                35,736,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,011,623,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -277,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                986,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                1,883,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,161,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,174,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |