Yangpyeong Sundae Guk is a market restaurant in the naengmyeon alley of Jegi-dong in Gyeongdong Market, serving sundae guk, seolleongtang, and bone haejang guk. Its sundae guk contains meat without off-flavors and chapsal sundae, and the broth is on the thick side. Rice is packed firmly into the bowl, and the bone haejang guk contains ugeoji. With few empty seats, you have to wait in line at lunch.