Chunup Sundaeguk Main Branch is a Korean restaurant in the basement level of H Square S in Pangyo Techno Valley, serving sundae gukbap and suyuk. It offers basic sundae gukbap and spicy sundae gukbap, along with kimchi and kkakdugi. Rice freshly cooked in a pot is refilled without limit, and scorched rice broth is served near the end of the meal. During lunch hours, office workers crowd in and waits grow long.