v3.26.3
Shareholders’ Equity (Details)
12 Months Ended
Jan. 20, 2026
USD ($)
$ / shares
shares
Nov. 18, 2025
¥ / shares
shares
Oct. 15, 2025
¥ / shares
$ / shares
shares
Aug. 27, 2025
USD ($)
Aug. 27, 2025
JPY (¥)
¥ / shares
shares
Apr. 30, 2026
USD ($)
$ / shares
shares
Apr. 30, 2026
JPY (¥)
shares
Apr. 30, 2025
JPY (¥)
shares
Apr. 30, 2024
JPY (¥)
shares
Apr. 30, 2026
JPY (¥)
shares
Aug. 27, 2025
$ / shares
shares
Class of Stock [Line Items]                      
Ordinary shares, shares issued   200,000       33,872,687   15,076,900   33,872,687  
Ordinary shares, shares outstanding           33,872,687   15,076,900   33,872,687  
Reduction capital shares, increase to additional paid-in-capital (in Yen)           $ 5,063,979 ¥ 793,322,924        
Issuance of ordinary shares through warrant exercises and acquisition (in Shares)           15,570,835 15,570,835        
Issuance of ordinary shares for cash           $ 94,344 ¥ 14,779,968 ¥ 781,200,000    
Class of warrant or right, outstanding           31,648,405       31,648,405  
Purchases of warrants | $ $ 2,500,000                    
Purchases of warrants shares 12,500,000                    
Warrants price per shares | (per share) $ 5 ¥ 0.416                  
P series preferred shares, shares issued           53,051,000     53,051,000  
P series preferred shares, shares outstanding           53,051,000     53,051,000  
Preference shares carrying amount           $ 21,644,500     ¥ 3,390,827,370  
Purchase price | ¥ / shares   ¥ 2,080,000 ¥ 5,000,001.76                
Net Cash Proceeds           $ 2.05       ¥ 321,931,200  
Maximum [Member]                      
Class of Stock [Line Items]                      
Beneficial ownership   9.99% 9.99%                
Minimum [Member]                      
Class of Stock [Line Items]                      
Beneficial ownership   4.99% 4.99%                
Acquisition of PML [Member]                      
Class of Stock [Line Items]                      
Issuance of ordinary shares for acquisition (in Shares)           3,049,000 3,049,000        
Pre-Funded Warrants [Member]                      
Class of Stock [Line Items]                      
Class of warrant or right, outstanding           3,281,640       3,281,640  
Class of warrant or right, exercise price of warrants or rights | $ / shares           $ 0.0001          
Net Cash Proceeds           $ 4.17       ¥ 653,075,244  
Ordinary Warrants [Member]                      
Class of Stock [Line Items]                      
Class of warrant or right, exercise price of warrants or rights | $ / shares     ¥ 0.544                
Warrant [Member]                      
Class of Stock [Line Items]                      
Class of warrant or right, outstanding   5,000,000                  
Warrants price per shares | ¥ / shares   ¥ 0.0001                  
Ordinary Shares [Member]                      
Class of Stock [Line Items]                      
Ordinary shares, shares issued     480,770   175,952 33,872,687   15,076,900   33,872,687 175,952
Ordinary shares, shares outstanding               15,076,900      
Issuance of ordinary shares for cash (in Shares)           175,952 175,952   1,200,000    
Issuance of ordinary shares for acquisition (in Shares)                  
Shares issued, price per share | (per share)         ¥ 84           $ 0.54
Issuance of ordinary shares for cash       $ 94,344 ¥ 14,779,968            
Class of warrant or right, outstanding   5,000,000 12,019,235                
Warrants price per shares | ¥ / shares   ¥ 0.544                  
Purchase price | ¥ / shares     ¥ 0.416                
Ordinary Shares [Member] | Pre-Funded Warrants [Member]                      
Class of Stock [Line Items]                      
Class of warrant or right, outstanding     12,019,235                
Class of warrant or right, exercise price of warrants or rights | $ / shares     ¥ 0.0001                
Private Placement [Member]                      
Class of Stock [Line Items]                      
Issuance of ordinary shares for cash (in Shares)           175,952 175,952