Deundeun Byeolsik is a restaurant near Dongdaeipgu Station in Jangchung-dong, Seoul. It serves spicy chadol gomguksu and suyuk made with arong, yangji, and chadol, and the suyuk broth is refilled without limit. The dining room is large and clean, and it suits group gatherings or late-night solo drinking. Minari-jeon and bulgogi bibimbap are also sold.