We provide O2O service solution with database of fashion subsidiary materials. Our service 'Buja Market' has AI image search technology, so customers can find and get recommendations on the materials they need with only a picture. We focus on forming database of offline based market Dongdaemun with IT and AI technology. Dongdaemun has 25,000 stores with 2,000,000 fabrics and 240 kinds of subsidiary materials. Our solution is to solve the problems of offline based market; complicated supply chain, information gaps, uncomfortable payment, time and expense, etc.