Tongkeun Kalguksu is a noodle shop next to Bogwang-dong Jongjeom Sutbul Galbi in Yongsan-gu, Seoul, serving kalguksu and yeolmu guksu. Its menu includes yeolmu guksu, cheongyang kalguksu, and deulgireum bibim kalguksu, and noodles are pressed and cut by hand when an order comes in. The banchan are yeolmu kimchi and geotjeori. The broth is not thick.