Semi-Annual Statement Of Cash Flows
| Concept | 2024-01-01 to 2024-06-30 | As at 2024-06-30 | As at 2023-12-31 | 2023-01-01 to 2023-06-30 | As at 2023-06-30 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|
| Semi-annual statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | 
                                                -285,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -233,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | 
                                                79,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                70,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | 
                                                1,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign exchange losses (gains) | 
                                                1,813,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in trade receivables | 
                                                -410,152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,140,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in trade payables | 
                                                127,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                596,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | 
                                                -2,494,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Subtotal | 
                                                702,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                571,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | 
                                                -1,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | 
                                                696,038,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                499,333,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | ||||||
| Purchase of investment securities | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | 
                                                -233,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -303,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | ||||||
| Proceeds from issuance of shares | 
                                                508,579,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | 
                                                1,881,231,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                109,034,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                65,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                2,452,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                265,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | — | 
                                                6,148,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,695,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,065,127,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,799,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |