Mos Burger - Izumiya Horikawa-Marutamachi is a hamburger shop on the second floor of Izumiya, near the Horikawa-Marutamachi intersection in Kyoto. It serves the Mos Burger and Mos Cheeseburger, and the Mos Cheeseburger can be ordered together with oni potato. The sauce contains a lot of onion. Large windows look out onto the Horikawa-Marutamachi intersection, and there are about 30 seats.