| Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Cash and deposits | - | 721 | 931 | 1,788 | 3,420 |
|---|
| Accounts receivable - trade | - | 910 | 833 | 1,208 | 1,265 |
|---|
| Consumption taxes receivable | - | 0 | 4 | 22 | - |
|---|
| Other | - | 67 | 82 | 62 | 54 |
|---|
| Allowance for doubtful accounts | - | -2 | -1 | -1 | -0 |
|---|
| Consumption taxes receivable | - | 0 | 4 | 22 | - |
|---|
| Current assets | - | 1,696 | 1,849 | 3,078 | 4,739 |
|---|
| Other | - | 67 | 82 | 62 | 54 |
|---|
| Current assets | - | 1,696 | 1,849 | 3,078 | 4,739 |
|---|
| Buildings and structures, net | - | 2 | 1 | 404 | 394 |
|---|
| Tools, furniture and fixtures, net | - | 1 | 4 | 8 | 17 |
|---|
| Land | - | 37 | 37 | 37 | 37 |
|---|
| Property, plant and equipment | - | 40 | 230 | 449 | 447 |
|---|
| Trademark right | - | 1 | 1 | 1 | 0 |
|---|
| Software | - | - | - | - | 4 |
|---|
| Intangible assets | - | 1 | 1 | 1 | 5 |
|---|
| Lease deposits and guarantee deposits | - | 150 | 138 | 135 | 194 |
|---|
| Deferred tax assets | - | 303 | 416 | 589 | 331 |
|---|
| Lease deposits and guarantee deposits | - | 150 | 138 | 135 | 194 |
|---|
| Other | - | - | 1 | 1 | 0 |
|---|
| Investments and other assets | - | 453 | 554 | 724 | 525 |
|---|
| Deferred tax assets | - | 303 | 416 | 589 | 331 |
|---|
| Other | - | - | 1 | 1 | 0 |
|---|
| Allowance for doubtful accounts | - | -2 | - | - | - |
|---|
| Investments and other assets | - | 453 | 554 | 724 | 525 |
|---|
| Non-current assets | - | 494 | 785 | 1,174 | 977 |
|---|
| Assets | - | 2,190 | 2,634 | 4,253 | 5,715 |
|---|
| Current portion of long-term borrowings | - | 5 | 5 | 67 | 67 |
|---|
| Accounts payable - other | - | 855 | 865 | 1,017 | 1,128 |
|---|
| Income taxes payable | - | 47 | 57 | 153 | 270 |
|---|
| Accrued consumption taxes | - | 36 | 26 | 149 | 234 |
|---|
| Income taxes payable | - | 47 | 57 | 153 | 270 |
|---|
| Provision for point card certificates | - | 319 | 313 | 341 | 363 |
|---|
| Accrued consumption taxes | - | 36 | 26 | 149 | 234 |
|---|
| Other | - | 26 | 33 | 35 | 50 |
|---|
| Current liabilities | - | 1,388 | 1,475 | 1,762 | 2,113 |
|---|
| Long-term borrowings | - | 25 | 20 | 354 | 287 |
|---|
| Non-current liabilities | - | 27 | 20 | 354 | 347 |
|---|
| Guarantee deposits received | - | - | - | - | 60 |
|---|
| Non-current liabilities | - | 27 | 20 | 354 | 347 |
|---|
| Liabilities | - | 1,415 | 1,496 | 2,117 | 2,461 |
|---|
| Share capital | - | 602 | 877 | 877 | 877 |
|---|
| Capital surplus | - | 581 | 878 | 896 | 896 |
|---|
| Capital surplus | - | 581 | 878 | 896 | 896 |
|---|
| Retained earnings | - | -402 | -617 | 362 | 1,480 |
|---|
| Retained earnings | - | -402 | -617 | 362 | 1,480 |
|---|
| Shareholders' equity | - | 775 | 1,137 | 2,135 | 3,254 |
|---|
| Share acquisition rights | - | - | 1 | 1 | 1 |
|---|
| Net assets | 541 | 775 | 1,138 | 2,136 | 3,255 |
|---|
| Liabilities and net assets | - | 2,190 | 2,634 | 4,253 | 5,715 |
|---|