Wangjjajang is a Chinese restaurant in Seoul that serves jjajangmyeon, jjamppong, and tangsuyuk. The tangsuyuk comes in a large portion, and the samseon jjamppong is generous enough to feel like a double serving. The menu includes chidon jjajang and jjatangmyeon, and dishes come out quickly when you avoid busy hours. The interior is clean and not noisy.