Seongsu Wandang Wangsimni Station Branch is an Asian restaurant on the third floor of Bitplex Mall at Wangsimni Station, serving noodles and dumplings. It offers perilla leaf buckwheat noodles in a mild broth and noodles with spicy black dumplings in a warm soup. The interior is bright, with wide spacing between tables, a bar table for solo diners, and an open kitchen. The noodles are finished by spooning up the remaining pieces of meat with the broth.