No Brand Burger COEX is a fast-food restaurant on the first floor of COEX in Samseong, Seoul, selling burgers and french fries. A burger set comes with thick-cut fries and a drink, and the cola can be refilled once. Ordering at one of the three kiosks gets food out within a few minutes outside the lunch hour. At lunch the seats tend to fill up, so a table needs to be claimed before ordering.