Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) |
Apr. 30, 2026
USD ($)
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Apr. 30, 2026
JPY (¥)
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Apr. 30, 2025
JPY (¥)
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| Schedule of Deferred Tax Assets and Liabilities [Abstract] | |||
| Japan tax loss carryforwards | $ 3,611,087 | ¥ 565,712,853 | ¥ 438,955,724 |
| Other Japan temporary differences | 224,544 | 35,177,137 | 29,932,840 |
| Foreign tax loss carryforwards | 924,906 | 144,895,706 | |
| Foreign / other deferred tax assets | 352,739 | 55,260,105 | |
| Gross deferred tax assets | 5,113,276 | 801,045,801 | 468,888,564 |
| Valuation allowance | (5,009,623) | (784,807,452) | (466,899,408) |
| Deferred tax assets, net | 103,653 | 16,238,349 | 1,989,156 |
| Parent / other deferred tax liabilities | (24,601) | (3,854,002) | (1,989,156) |
| Foreign / other deferred tax liabilities | (79,052) | (12,384,347) | |
| Deferred tax liabilities | (103,653) | (16,238,349) | (1,989,156) |
| Net deferred tax asset (liability) | ¥ 0 |
| X | ||||||||||
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible tax credit carryforwards, foreign / other deferred tax assets. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other japan temporary differences. No definition available.
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from foreign / other deferred tax liabilities. No definition available.
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from parent / other deferred tax liabilities. No definition available.
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- References No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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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- 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 after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. 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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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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