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 | — | 
                                                -1,102,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -785,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | 
                                                3,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Impairment losses | — | 
                                                153,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                95,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | 
                                                -3,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | 
                                                -1,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                109,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -42,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,489,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | 
                                                -832,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -562,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -1,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -833,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -564,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -142,998,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -163,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -150,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -212,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||
| Purchase of treasury shares | — | 
                                                -1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -20,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                63,943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -20,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                16,783,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,365,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -903,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -769,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                1,541,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,444,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,214,852,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |