Ryusenso Lotte Department Store Gwangbok Branch is a ramen shop inside Lotte Department Store Gwangbok Branch in Busan. It serves Japanese-style ramen and tonkotsu ramen, including a rich tonkotsu broth ramen and a spicy tonkotsu. The spicy tonkotsu is less heavy, but the saltiness builds as you eat. Because it is inside a department store, the surroundings are busy.