Gongja Siktak is a Chinese restaurant in Seoul that serves jjajangmyeon and tangsuyuk. It also offers jjajangmyeon, jaengban jjajang, and jjamppong, along with stir-fried dishes such as kkanpunggi and gochujapchae. Portions are large, so an adult man who cannot eat much will find the meal overwhelming. When customers crowd in, service slows down.