Semi-Annual Consolidated Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                13,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,629,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,752,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -238,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -340,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                65,861,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                2,278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,253,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                1,524,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,556,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                697,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                1,760,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                28,312,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,998,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                26,466,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,233,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                298,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,504,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,426,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -158,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                32,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,054,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                98,213,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit asset | 
                                                176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                1,316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,816,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                472,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | 
                                                321,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                298,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                839,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,442,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                27,485,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,226,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                385,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                4,224,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,530,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                31,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,756,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                2,888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                3,718,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,013,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                5,158,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,158,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                7,104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                43,489,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,212,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -2,707,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                53,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,477,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                12,077,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,271,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                1,311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                776,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                13,388,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,048,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                68,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                66,502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,594,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                98,213,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |