| 2025/3 | 2026/3 |
| Assets | | |
| Current assets | | |
| Cash and deposits | 10,724,275 | 11,316,883 |
| Notes and accounts receivable - trade, and contract assets | 7,121,580 | 9,148,244 |
| Work in process | 1,002 | 544 |
| Supplies | 4,462 | 7,055 |
| Other | 442,111 | 385,885 |
| Allowance for doubtful accounts | -4,467 | -5,585 |
| Total current assets | 18,288,963 | 20,853,027 |
| Non-current assets | | |
| Property, plant and equipment | | |
| Buildings | 499,781 | 421,245 |
| Accumulated depreciation | -260,571 | -187,481 |
| Buildings, net | 239,210 | 233,764 |
| Vehicles | 29,617 | 27,190 |
| Accumulated depreciation | -28,646 | -26,175 |
| Vehicles, net | 971 | 1,014 |
| Tools, furniture and fixtures | 377,798 | 476,402 |
| Accumulated depreciation | -290,144 | -355,455 |
| Tools, furniture and fixtures, net | 87,653 | 120,947 |
| Total property, plant and equipment | 327,835 | 355,726 |
| Intangible assets | 230,582 | 63,825 |
| Investments and other assets | | |
| Investment securities | 222,709 | 227,463 |
| Deferred tax assets | 285,860 | 415,234 |
| Other | 528,754 | 592,811 |
| Allowance for doubtful accounts | -6,313 | -6,313 |
| Total investments and other assets | 1,031,009 | 1,229,195 |
| Total non-current assets | 1,589,427 | 1,648,747 |
| Total assets | 19,878,390 | 22,501,774 |
| Liabilities | | |
| Current liabilities | | |
| Short-term borrowings | 36,000 | 36,000 |
| Current portion of long-term borrowings | 253,132 | 220,032 |
| Accounts payable - other | 2,267,327 | 2,549,860 |
| Accrued expenses | 377,000 | 438,693 |
| Income taxes payable | 487,402 | 969,726 |
| Accrued consumption taxes | 369,605 | 945,758 |
| Contract liabilities | 79,703 | 155,917 |
| Provision for bonuses | 292,659 | 378,984 |
| Provision for bonuses for directors (and other officers) | - | 11,670 |
| Provision for loss on orders received | - | 113,783 |
| Asset retirement obligations | 16,175 | - |
| Other | 174,188 | 160,683 |
| Total current liabilities | 4,353,194 | 5,981,109 |
| Non-current liabilities | | |
| Long-term borrowings | 400,032 | 275,000 |
| Asset retirement obligations | 146,357 | 154,219 |
| Other | 65,905 | 78,028 |
| Total non-current liabilities | 612,295 | 507,248 |
| Total liabilities | 4,965,490 | 6,488,357 |
| Net assets | | |
| Shareholders' equity | | |
| Share capital | 412,348 | 418,318 |
| Capital surplus | 253,642 | 281,230 |
| Retained earnings | 14,490,479 | 15,654,690 |
| Treasury shares | -443,771 | -443,884 |
| Total shareholders' equity | 14,712,698 | 15,910,354 |
| Accumulated other comprehensive income | | |
| Valuation difference on available-for-sale securities | 43,455 | 44,375 |
| Total accumulated other comprehensive income | 43,455 | 44,375 |
| Share acquisition rights | 59,103 | 58,687 |
| Non-controlling interests | 97,642 | - |
| Total net assets | 14,912,900 | 16,013,417 |
| Total liabilities and net assets | 19,878,390 | 22,501,774 |