Taeseonggwan is an old Chinese restaurant in an Insadong alley in Jongno-gu, Seoul, serving jjajangmyeon, jjamppong, and tangsuyuk. The fried meat is eaten with jjamppong or jjajang, and the set comes with gunmandu and a drink. The shop looks like a Chinese restaurant from the 1980s, and food arrives quickly after ordering. Some menu items are small in portion.