Muguok Seongsu Branch is a chicken restaurant in Seongsu that serves North Korean-style samgye baekban and dak baeksuk. The chicken and the thick chicken broth come out separately, eaten with salt and pepper or with added ginseng and garlic. On-site waiting is registered through CatchTable from 10:30 a.m., business starts at 11:30 a.m., and after taking a number you look around the neighborhood. The wait runs over one or two hours even on weekdays.