Consolidated Statement Of Income
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||
| Statement of income | ||||||||
| Net sales | 
                                                106,798,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                99,834,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cost of sales | 
                                                70,428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                64,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||
| Operating expenses - general | ||||||||
| Depreciation | 
                                                1,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||
| Selling, general and administrative expenses | 
                                                27,264,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                22,291,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||
| Gross profit (loss) | 
                                                36,370,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                35,597,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| General and administrative expenses | ||||||||
| Net sales | ||||||||
| Ordinary profit (loss) | 
                                                34,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                30,709,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating profit (loss) | 
                                                9,106,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                13,305,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||
| Cost of sales | ||||||||
| Selling, general and administrative expenses | ||||||||
| Non-operating income | ||||||||
| Dividend income | 
                                                26,071,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                17,388,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest income | 
                                                166,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating income | 
                                                26,730,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                18,305,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Miscellaneous income | 
                                                491,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                773,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary income | 
                                                1,934,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating expenses | ||||||||
| Interest expenses | 
                                                564,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                493,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating expenses | 
                                                1,031,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                901,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | 
                                                945,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                179,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Impairment losses | 
                                                217,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other | 
                                                78,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Gross profit | ||||||||
| Profit (loss) before income taxes | 
                                                35,793,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                30,744,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary income | ||||||||
| Gain on sale of non-current assets | 
                                                163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Gain on sale of investment securities | 
                                                1,771,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes - current | 
                                                2,354,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,803,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | ||||||||
| Income taxes - deferred | 
                                                528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,985,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes | 
                                                2,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,788,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) | 
                                                32,910,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,910,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,910,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,910,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,956,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,956,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,956,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,956,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |