Hamjiseong is a Chinese restaurant in the printing alley of Jeo-dong in Chungmuro, Seoul, serving jjajangmyeon, ganjjajang, and tangsuyuk. It offers ganjjajang and yunijjajang, and set menus are available to order. Portions are larger than at nearby Chinese restaurants, and the food is decent. Jjamppong and bokkeumbap are also on the menu.