Sonang Sikdang is a Chinese restaurant in Seogwipo that serves jjajangmyeon, jjamppong, tangsuyuk and bibimbap. It is known for using black, chewy heukmi noodles in its jjajangmyeon and jjamppong. Ordering tangsuyuk comes with fried mandu as a service item. The jjamppong is either too peppery or too bland.