Jeongga Jjamppong is a Chinese restaurant in Seoul that serves samseon jjamppong and jjajangmyeon. It is on the second floor of the Grasium commercial building at Exit 1 of Sangil-dong Station. The kitchen also sends out ganjjajang and tangsuyuk, and the bul-taneun sinjjajang is a strongly spicy menu item. At an early lunch you can eat without waiting, but seats fill up as time passes, and there is no delivery, so you eat in the store or take out.