Hongdukkebon Kalguksu is a noodle restaurant in Seoul. It serves clam kalguksu (knife-cut noodles) and kongguksu as a summer dish, along with acorn noodles and seafood pajeon. The dishes come in brass bowls with kimchi, and the owner explains the food. The restaurant has many tables, so the inner area is narrow and the tables are close together, making dining uncomfortable.