Cheolma Hanu Roseu Gui is a no-frills beef grill restaurant in Busan that serves hanwoo roast grilling cuts. It offers thinly sliced roast, chadolbagi, tongue, and sirloin, and when you order, the staff choose the meat for you instead of you picking the cut. It stays open until dawn and the wait is long, so you need to arrive early. Seating is very cramped.