63 Buffet Pavilion The Premium is a buffet restaurant on the B1 floor of the 63 Building that serves sushi, sashimi, and snow crab. Chefs stand at each station and make the sushi you ask for on the spot. Weekday lunch starts at 12, parking is free for three hours, and visits can be booked through Naver. Seats are close together, so lines form when the restaurant is crowded and the dining area tends to be loud.