Haohao is a Chinese restaurant in Mangwon-dong, Mapo-gu, Seoul, serving jjajangmyeon and jjamppong. The samseon jjamppong and chadol jjamppong contain generous seafood, and the jjamppong broth is flavorful. Jjajangmyeon and jjamppong are available for both dine-in and delivery. Phone calls do not connect, and the tangsuyuk has a soggy or hard texture.