Ramen Kuu is a Japanese ramen restaurant in Busan that serves tonkotsu, shoyu, and gamtae ramen. The menu includes tonkotsu ramen and gamtae ramen, and orders can be adjusted for garlic and spice level. The tonkotsu broth is salty and deep, while the gamtae ramen has a pronounced savory flavor. The broth tends toward the salty side.