Tonshow Busandae Main Branch is a specialty restaurant in Busan that serves Berkshire K tonkatsu. It offers Berkshire K rosu katsu, hire katsu, and a mixed set, and each order comes with a mushroom soup before the meal plus yuja mustard and several sauces. A remote wait through CatchTable ran 2 hours 35 minutes, followed by about 20 minutes more at the store. There is no parking support.