Bokseonggak Seodaemun Branch is a Chinese restaurant in the underground shopping arcade of the Hana Bank building in Chunghyeon-dong, Seodaemun-gu, Seoul. It serves dim sum, jjajangmyeon, and jjamppong, with shumai that are densely filled and jjamppong featuring chewy noodles in a spicy broth. The lunch Course A includes crab meat porridge, tangsuyuk, japchae kkotppang, jjajang or jjamppong, and sweet potato matang. The tangsuyuk is crispy but contains little meat, and the dim sum are well filled but the wrappers are swollen.