Geumboseong is a Chinese restaurant in Seoul. It serves jjajang, jjamppong, tangsuyuk, and fried rice, with the option to have fried rice with jjajang or jjamppong. The tangsuyuk is fried until crisp and chewy. The chili shrimp sauce does not blend well with the dish, and the jjajang is thin with unbalanced seasoning.