v3.26.3
Cover - USD ($)
12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Cover [Abstract]    
Document Type 10-K  
Amendment Flag false  
Document Annual Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2026  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --06-30  
Entity File Number 333-290569  
Entity Registrant Name YAN CHUANG GROUP INC.  
Entity Central Index Key 0002086503  
Entity Tax Identification Number 39-4573433  
Entity Incorporation, State or Country Code NV  
Entity Address, Address Line One 4711 Yonge St.  
Entity Address, Address Line Two 10th Floor  
Entity Address, City or Town Toronto  
Entity Address, State or Province ON  
Entity Address, Country CA  
Entity Address, Postal Zip Code M2N 6K8  
City Area Code (647)  
Local Phone Number 777-7888  
Title of 12(g) Security Class B Common Stock  
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   $ 0
Entity Common Stock, Shares Outstanding 10,019,730  
Document Financial Statement Error Correction [Flag] false  
Auditor Name DylanFloyd Accounting & Consulting  
Auditor Location Newhall, California  
Auditor Firm ID 6235