Ttowajip Sundaeguk serves sundae-guk behind KB Kookmin Bank near Gwangundae Station. Its thick broth contains melted collagen and is topped with sesame seeds and perilla leaf, with dangmyeon sundae and meat without fat. The long-established restaurant moved from near Seokgye Station because of redevelopment. It serves meals with drinks, and its kimchi is aged for one or two days.