Gyedan Kalguksu in Seoul serves chicken-broth noodles and kalguksu (knife-cut noodles) near Hallym University Gangnam Sacred Heart Hospital. Its spicy kalguksu is hot even at level 1 and comes with Gyedan Mandu and maneul kimchi. The broth has a clean, refreshing taste, and Kimchi Hororok noodles are also on the menu. Service is slow.