Kamiya is a Japanese restaurant in an alley in front of Hongdae’s main gate. Its signature dishes include okonomiyaki sauce don, hire cheese katsu, and a cold soba set, with udon and tonkatsu also available. Write your phone number, name, and order on arrival to receive a place in the waiting queue. Food takes about 10 minutes after ordering, and the wait can reach 30 to 40 minutes during lunch.