Mugyodong Nakji Guui is an octopus restaurant in Guui-dong, Seoul, serving nakji bokkeum and san nakji jeongol. The menu also includes jogae tang and gyeran jjim. The Guui-dong shop has been in business for over 20 years, and the taste varies little from visit to visit. The heat is strong, so it is harsh for people who cannot eat spicy food.