Seongsu Sokhyangyeon is a Chinese restaurant in Seongsu, Seoul, serving tenderloin tangsuyuk, jjajangmyeon, and jjamppong. The tenderloin tangsuyuk has a crisp exterior and a soft interior, with a chewy texture from its glutinous rice batter. The jjajangmyeon uses thin noodles, while the jjamppong comes with generous seafood and ingredients in a spicy, refreshing broth. The jjamppong varies in taste from day to day.