| Apr 30,
2017 | Apr 30,
2018 | Apr 30,
2019 | Apr 30,
2020 | Apr 30,
2021 | Apr 30,
2022 | Apr 30,
2023 |
|---|
| Profit (loss) before income taxes | 94 | 339 | 415 | 365 | 286 | 88 | -426 |
|---|
| Depreciation | 4 | 3 | 50 | 63 | 71 | 153 | 164 |
|---|
| Amortization of goodwill | - | - | - | - | - | - | 88 |
|---|
| Amortization of lease deposits | 1 | 1 | 1 | 1 | 1 | 1 | 4 |
|---|
| Share-based payment expenses | - | - | - | - | - | - | 30 |
|---|
| Interest and dividend income | - | - | - | - | -0 | -50 | -0 |
|---|
| dividends on investment | -3 | -2 | -0 | -0 | -0 | -0 | -0 |
|---|
| Interest expenses | 0 | 0 | - | - | - | - | 6 |
|---|
| Commission expenses | - | - | - | - | - | - | 0 |
|---|
| Share issuance costs | - | 5 | 0 | 22 | - | - | 21 |
|---|
| Loss (gain) on investments in investment securities | - | - | - | - | - | - | 22 |
|---|
| Share of loss (profit) of entities accounted for using equity method | - | - | - | - | - | - | -15 |
|---|
| Loss (gain) on step acquisitions | - | - | - | - | - | - | 541 |
|---|
| Increase (decrease) in provision for bonuses | -1 | 6 | 0 | 1 | 1 | -0 | 3 |
|---|
| Increase (decrease) in Provision for loss on contract | - | - | - | - | - | - | 101 |
|---|
| Decrease (increase) in trade receivables | 31 | 28 | -30 | -197 | 144 | 33 | 18 |
|---|
| Decrease (increase) in inventories | - | -6 | -4 | 2 | 7 | - | 20 |
|---|
| Decrease (increase) in advance payments to suppliers | - | - | - | - | - | - | 62 |
|---|
| Increase (decrease) in trade payables | -32 | -32 | -1 | -1 | 2 | 2 | -25 |
|---|
| Increase (decrease) in accounts payable - other | -5 | -1 | 5 | -17 | 14 | 8 | -36 |
|---|
| Increase (decrease) in accrued expenses | -4 | 0 | 6 | -6 | 6 | -4 | 5 |
|---|
| Increase/decrease in consumption taxes payable/consumption taxes refund receivable | - | - | - | - | - | - | -26 |
|---|
| Increase (decrease) in deposits received | 23 | -23 | 4 | -7 | 3 | 7 | -1 |
|---|
| Decrease (increase) in prepaid expenses | -2 | -2 | -12 | -8 | 2 | -14 | 5 |
|---|
| Decrease (increase) in long-term prepaid expenses | - | - | - | - | - | - | 28 |
|---|
| Increase (decrease) in long term advances received | - | - | - | - | - | - | -53 |
|---|
| Increase (decrease) in contract liabilities | - | - | - | - | - | 28 | -26 |
|---|
| Other, net | -9 | 39 | -43 | 64 | -56 | 26 | 11 |
|---|
| Subtotal | 99 | 373 | 403 | 353 | 493 | 248 | 522 |
|---|
| Interest received | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Dividends received from entities accounted for using equity method | - | - | - | - | - | - | 49 |
|---|
| Proceeds from dividends on investment | 3 | 1 | 1 | 0 | 0 | 0 | 0 |
|---|
| Interest paid | -0 | -0 | - | - | - | - | -6 |
|---|
| Income taxes refund (paid) | 7 | -0 | -173 | -110 | -133 | -50 | -82 |
|---|
| Net cash provided by (used in) operating activities | 111 | 374 | 230 | 243 | 361 | 198 | 483 |
|---|
| Purchase of property, plant and equipment | -1 | -28 | -169 | -44 | -365 | -4 | -23 |
|---|
| Proceeds from sale of property, plant and equipment | - | - | - | - | - | - | 1 |
|---|
| Purchase of intangible assets | -0 | -0 | -6 | -1 | -14 | -8 | -73 |
|---|
| Purchase of investment securities | - | - | -294 | - | - | -105 | -58 |
|---|
| Proceeds from purchase of shares of subsidiaries resulting in change in scope of consolidation | - | - | - | - | - | - | 8 |
|---|
| Proceeds from refund of leasehold and guarantee deposits | 4 | - | - | - | - | 5 | 0 |
|---|
| Proceeds from distributions from investment partnerships | - | - | - | - | - | 16 | 0 |
|---|
| Net cash provided by (used in) investing activities | 3 | -36 | -469 | -78 | -385 | -2,092 | -144 |
|---|
| Repayments of short-term borrowings | -100 | -10 | - | - | - | - | -100 |
|---|
| Repayments of long-term borrowings | -5 | - | - | - | - | - | -100 |
|---|
| Proceeds from issuance of shares resulting from exercise of share acquisition rights | - | - | 71 | 42 | 15 | - | 0 |
|---|
| Purchase of treasury shares | -126 | - | -0 | - | -0 | - | -0 |
|---|
| Dividends paid to non-controlling interests | - | - | - | - | - | - | -0 |
|---|
| Other, net | - | -10 | - | - | - | - | -0 |
|---|
| Net cash provided by (used in) financing activities | -171 | 1,013 | 178 | 3,904 | 15 | 0 | -201 |
|---|
| Net increase (decrease) in cash and cash equivalents | -57 | 1,350 | -61 | 4,069 | -9 | -1,894 | 138 |
|---|