Jangseong Sikdang is a sundae guk restaurant in Yongdap-dong, Seoul. It serves sundae guk and someori gukbap, with vegetable sundae and pork intestines in the soup. The restaurant has operated in Dapsimni for over 40 years and takes a break at 3 p.m. The broth is seasoned strongly, so it tastes salty to those who eat lightly.