Jungguksung is a Chinese restaurant in Jamwon-dong, Seoul, serving jjamppong and tangsuyuk near Jamwon-dong and Express Bus Terminal. Its wangsaewoo tangmyeon features large shrimp and a deep broth, and its chapssal tangsuyuk keeps the texture of the meat intact. The restaurant has private rooms, and parking discount coupons are available at the counter. Prices are on the high side.