v3.26.1
Cover - USD ($)
 12 Months Ended
Mar. 31, 2026
Jul. 13, 2026
Sep. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Mar. 31, 2026    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2026    
Current Fiscal Year End Date --03-31    
Entity File Number 001-42592    
Entity Registrant Name OFA GROUP    
Entity Central Index Key 0002036307    
Entity Tax Identification Number 00-0000000    
Entity Incorporation, State or Country Code E9    
Entity Address, Address Line One 609 Deep Valley Drive    
Entity Address, Address Line Two Suite 200    
Entity Address, City or Town Rolling Hills    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 90274    
City Area Code (800)    
Local Phone Number 418-5160    
Title of 12(b) Security Class A Ordinary Shares, $0.001 par value per share    
Trading Symbol OFAL    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 6,838,750
Entity Common Stock, Shares Outstanding   26,370,521  
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 2738    
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of OFA Group (the Company) as of March 31, 2026 and 2025 and the related statements of operations, statements of comprehensive (loss) income, statements of changes in shareholders’ equity, statements of changes in mezzanine equity and cash flows for the two years period then ended, and the related notes (collectively referred to as the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the consolidated financial position of the Company as of March 31, 2026 and 2025, and the results of its operations and its cash flows for each of the years in the two years periods ended March 31, 2026, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name M&K CPAS, PLLC    
Auditor Location The Woodlands, Texas