Wonjo Naengmyeon is a naengmyeon (cold noodles) restaurant in a converted house in a Seoul alley, serving chikmul-naengmyeon and bibim-naengmyeon. The chewy noodles have an arrowroot aroma, and the mul-naengmyeon comes with a sweet-and-sour broth while the bibim-naengmyeon is served with a clear broth. The restaurant has been open for at least 25 years, with some customers visiting for more than 30 years. Tables fill the living room, small room, and large room, with additional seating in the outdoor yard, but there is no parking space.