Nanum Guksu Guksu is a noodle shop near the district office in Gwanak-gu, Seoul, serving anchovy broth noodles, gimbap, and udon. The anchovy broth noodles come with chewy noodles and fried tofu topping, and the aged kimchi tuna gimbap and tteokbokki in broth are ordered alongside. Water and pickled radish are self-service, a TV is inside the shop, and food comes out quickly. Both buses and the subway are a distance away, making access inconvenient.