Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | As at 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | As at 2020-12-31 | 
|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | — | 
                                                -846,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -739,873,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,143,007,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,120,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                188,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                200,268,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | — | 
                                                364,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,630,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Foreign exchange losses (gains) | — | — | 
                                                -2,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,888,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | — | 
                                                -697,521,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -115,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | — | 
                                                984,427,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                162,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | — | 
                                                3,423,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | — | 
                                                184,501,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -774,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | — | 
                                                -349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,285,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                146,317,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -677,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||||
| Net cash provided by (used in) investing activities | — | — | 
                                                -58,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -43,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||||
| Repayments of long-term borrowings | — | — | 
                                                -25,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -124,496,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from issuance of shares | — | — | 
                                                965,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,539,258,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                1,439,685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                970,023,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                74,691,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                31,085,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                1,601,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                279,839,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                2,799,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,197,174,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                917,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |