Guksu Iyagi is a noodle restaurant in Sangwon-dong, Pohang. It serves seaweed and seafood kalguksu, the Himnaera Pohang kalguksu, and mulgajami bibim noodles. After appearing on Baek Jong-won's Alley Restaurant, the restaurant draws enough customers to create a wait. Heugimja kongguksu is offered as a summer special.