Kongppuri Kongnamul Gukbap Gangnam-gu Office Branch is a haejang-guk restaurant in Gangnam, Seoul, serving kongnamul gukbap and donkatsu. The menu also includes soba, dried radish greens gukbap, and squid kongnamul gukbap. It is open 24 hours, so meals and drinks are available late at night. The sundae guk contains kongnamul, which makes its composition different from traditional sundae guk.