v3.26.1
Commitments and Contingencies (Details Narrative) - JPY (¥)
6 Months Ended 12 Months Ended
Feb. 03, 2026
Dec. 17, 2025
Sep. 26, 2025
Dec. 13, 2024
May 14, 2023
Sep. 30, 2025
Sep. 30, 2024
Mar. 31, 2023
Mar. 31, 2025
Loss Contingencies [Line Items]                  
Commitments under purchase or guarantee arrangements           ¥ 0     ¥ 0
Legal Matters           0 ¥ 0    
Research and development costs           ¥ 57,304,000    
Loss contingency, damages paid, value   ¥ 20,394,000              
Litigation Settlement, Loss           924,000      
Litigation Settlement Interest           7,015,000      
Loss Contingency Accrual           ¥ 27,409,000      
Litigation settlement expense     ¥ 1,197,000            
Subsequent Event [Member]                  
Loss Contingencies [Line Items]                  
Litigation settlement expense ¥ 1,131,000                
Minimum [Member]                  
Loss Contingencies [Line Items]                  
Percentage of accruing interest rate   3.00%              
Maximum [Member]                  
Loss Contingencies [Line Items]                  
Percentage of accruing interest rate   14.60%              
ZESTO Consulting LLC [Member]                  
Loss Contingencies [Line Items]                  
Unpaid system development fees         ¥ 21,770,000        
Research and development costs               ¥ 22,470,000  
Unpaid service fees       ¥ 19,470,000          
Percentage of accruing interest rate       3.00%