| 2024/3 | 2025/3 |
| Cash flows from operating activities | | |
| Profit before income taxes | 3,280,944 | 2,700,899 |
| Depreciation | 252,917 | 226,739 |
| Increase (decrease) in allowance for doubtful accounts | 2,258 | 4,430 |
| Increase (decrease) in provision for bonuses | 5,893 | -26,249 |
| Increase (decrease) in retirement benefit liability | -622 | -314 |
| Interest and dividend income | -1,647 | -6,704 |
| Interest expenses | 4,824 | 6,289 |
| Decrease (increase) in trade receivables and contract assets | 6,048,298 | 1,498,530 |
| Decrease (increase) in inventories | -8,669 | 12,999 |
| Increase (decrease) in advances received | -2,292 | -530 |
| Increase (decrease) in accounts payable - other | -655,108 | -692,275 |
| Increase (decrease) in accrued expenses | -297,061 | -39,400 |
| Increase (decrease) in accrued consumption taxes | -468,633 | 99,446 |
| Increase (decrease) in deposits received | 1,007,222 | -1,030,111 |
| Increase (decrease) in contract liabilities | 178,801 | -114,779 |
| Other, net | -293,737 | 397,316 |
| Subtotal | 9,053,386 | 3,036,286 |
| Interest and dividends received | 1,647 | 6,704 |
| Interest paid | -5,118 | -5,982 |
| Income taxes paid | -2,292,471 | -535,851 |
| Income taxes refund | 8,438 | 209,561 |
| Net cash provided by (used in) operating activities | 6,765,882 | 2,710,718 |
| Cash flows from investing activities | | |
| Purchase of investment securities | -102,975 | -3,008 |
| Purchase of property, plant and equipment | -131,117 | -63,722 |
| Purchase of intangible assets | -379,970 | -35,353 |
| Payments for asset retirement obligations | -21,310 | -11,546 |
| Payments of leasehold and guarantee deposits | -41,803 | -49,988 |
| Proceeds from lease and gurantee deposits | 62,435 | 34,524 |
| Other, net | - | -681 |
| Net cash provided by (used in) investing activities | -614,741 | -129,775 |
| Cash flows from financing activities | | |
| Proceeds from long-term borrowings | 300,000 | - |
| Repayments of long-term borrowings | -286,704 | -339,872 |
| Redemption of bonds | -30,000 | -20,000 |
| Purchase of treasury shares | -315 | -7 |
| Dividends paid | -1,303,440 | -1,425,294 |
| Other, net | -106 | -15 |
| Net cash provided by (used in) financing activities | -1,320,566 | -1,785,189 |
| Net increase (decrease) in cash and cash equivalents | 4,830,574 | 795,753 |
| Cash and cash equivalents at beginning of period | 5,097,947 | 9,928,521 |
| Cash and cash equivalents at end of period | 9,928,521 | 10,724,275 |
