Schedule of Components of Deferred Tax Assets and Liabilities (Details) - JPY (¥) ¥ in Thousands |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Deferred revenue | ¥ 297,769 | ¥ 245,701 |
| Net operating loss carryforwards | 386,090 | 212,825 |
| Accrued expenses and reserves | 92,455 | 122,403 |
| Operating lease liabilities | 2,466 | 278 |
| Other | 909 | |
| Total deferred tax assets | 778,780 | 582,116 |
| Depreciation and amortization | 18,144 | 9,725 |
| Operating lease ROU assets | 2,468 | 280 |
| Total deferred tax liabilities | 20,612 | 10,005 |
| Less: Valuation allowance | (758,168) | (572,111) |
| Net deferred tax assets/(liabilities) |
| X | ||||||||||
- Definition Deferred tax assets deferred revenue. No definition available.
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| X | ||||||||||
- Definition Deferred tax assets operating lease liabilities. No definition available.
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| X | ||||||||||
- Definition Deferred Tax Liabilites Valuation Allowance. No definition available.
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| X | ||||||||||
- Definition Deferred taxliabilities depreciation and amortization. No definition available.
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| X | ||||||||||
- Definition Deferred tax liabilities operating lease right of use assets. No definition available.
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| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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