Sada Gimbap Wangsimni Station Branch is a 24-hour restaurant near Wangsimni Station in Seongdong-gu, Seoul, serving gimbap, ramyeon, and tteokbokki. The basic gimbap contains a large amount of vegetables, and gukmul tteokbokki and tteok mandu ramyeon can also be ordered. Orders are placed at a kiosk, and customers pick up their own side dishes, soup, and food in a self-service format, with many tables for solo diners. Staff service is rough.