Gogong Seongsu Main Branch is a barbecue restaurant in Ttukseom that serves aged pork and beef. The pork set includes pork collar, samgyeopsal, and deungsimdeotsal, while the beef set includes tosisal and galbisal, all grilled over dry corn fuel and served with three kinds of salt, salted shrimp, and wasabi. Staff grill the meat for you, and the main branch provides kimchi kongnamul-guk at no charge. Clothes can be stored in a separate locker, and the small space makes the seating cramped with guests sitting close together.