Hwangsil Jjajang Gwangjingyo 4-hojeom is a Chinese restaurant near Cheonho Park in Seoul that serves jjajangmyeon, jjamppong, tangsuyuk, and bokkeumbap. Its jjajangmyeon uses a chunjang-based sauce with chewy noodles, and the jjamppong broth is hot and served in a large portion. The restaurant opens early enough to visit before dawn, making it useful for late-night meals. Dining in is prepaid and cards are accepted.