Guwolsan is a Korean restaurant near Yeongdeungpo-gu Office Station in Seoul that has been open for over ten years, serving dishes such as galbijjim and dogani suyuk. Galbijjim requires a reservation in advance, and the owner attends to customers closely. The kitchen uses only domestically produced gochutgaru, and the restaurant is also a spot people choose for gatherings with friends. Tables are often unavailable.