Jeongseong Sikdang is a small gimbap shop standing alone on a road in Jeju, selling basic, tuna, and jeyuk gimbap along with ramyeon and tteokbokki. It uses domestic ingredients without synthetic seasonings, and each roll of gimbap is packed in its own individual case for takeout. Meals are available early in the morning, about two cars can park next to the building, and phone orders are accepted. No soup is served separately even when basic gimbap and jeyuk gimbap are ordered.