Sabuk Kalguksu is an old noodle shop in Busan that serves Gangneung-style jang kalguksu. The jang kalguksu comes with a rich, spicy broth and chewy or soft noodles, and the rice is mixed into the soup. JYJ-related photos and graffiti cover the walls, and the shop has only four tables. The space is small, so customers wait when there are no seats.