v3.26.3
Income Taxes - Schedule of Schedule of Rate Reconciliations, Prior to Adoption (Details)
12 Months Ended
Apr. 30, 2026
USD ($)
Apr. 30, 2026
JPY (¥)
Apr. 30, 2025
JPY (¥)
Apr. 30, 2024
JPY (¥)
Schedule of Schedule of Rate Reconciliations, Prior to Adoption [Abstract]        
Tax at Japanese statutory income tax rate, Percent 34.60% 34.60% 34.60% 34.60%
State and local income tax, net of national income tax effect, Percent 0.00% 0.00%    
Foreign tax effects, Percent (1.60%) (1.60%)    
Effect of changes in tax laws or rates, Percent 0.00% 0.00%    
Effect of cross-border tax laws, Percent 0.00% 0.00%    
Tax credits, Percent 0.00% 0.00%    
Changes in valuation allowances, Percent (6.90%) (6.90%) (33.40%) (45.90%)
Nontaxable or nondeductible items – acquisition-related expense, Percent (25.50%) (25.50%)
Outside-basis / related-company share basis difference, Percent 0.00% 0.00%    
Other nontaxable or nondeductible items, Percent 0.00% 0.00%    
Deferred IPO costs, Percent     11.80%
Non-taxable income, Percent     1.00%
Share-based compensation, Percent     (0.20%)
Other, Percent (0.60%) (0.60%) (1.20%) (1.20%)
Effective income tax rate / provision, Percent 0.00% 0.00% 0.00% 0.10%
Tax at Japanese statutory income tax rate, Amount $ (6,054,755) ¥ (948,537,990)    
State and local income tax, net of national income tax effect, Amount    
Foreign tax effects, Amount 277,426 43,461,618    
Effect of changes in tax laws or rates, Amount    
Effect of cross-border tax laws, Amount    
Tax credits, Amount    
Changes in valuation allowances , Amount 1,199,147 187,858,423    
Nontaxable or nondeductible items – acquisition-related expense, Amount 4,464,642 699,430,848    
Outside-basis / related-company share basis difference, Amount    
Other nontaxable or nondeductible items, Amount 4,761 745,830    
Other, Amount 108,779 17,041,271    
Effective income tax rate / provision, Amount ¥ (188,496)