Katsu An Gyeongseongdae Bukyeongdae Branch is a donkatsu restaurant in Busan that serves donkatsu and cheese katsu. The cheese katsu comes with a basic donkatsu sauce and a spicy sauce, and the deungsim katsu can be dipped in salt and wasabi. It serves danmuji pickled in yuja, and customers sanitize their hands as soon as they enter. The seating is clean and the restaurant is crowded at lunchtime.