Hanna Seongsu is a cafe in Seongsu-dong that sells coffee and cookies, located near Seoul Forest and farther from the subway station. It occupies a converted three-story factory building, keeping the factory look on the exterior, with full-glass windows and a wide open interior. Ttukseom Han River is nearby, and the surrounding alleys hold factories and hardware stores. The seating layout is inefficient and the wooden chairs are heavy, making long stays uncomfortable.