Singane Suje Sundae Dwitgogi Gongdeok Main Branch is a sundae guk restaurant near Gongdeok Station in Seoul. It serves red sundae guk and plain sundae guk, and the dwitgogi comes with different cuts and thick skin. At lunch, a line forms of customers waiting to eat sundae guk, and yogurt is served as a dessert. The space inside is not large, so checking for a table is necessary at dinner time.