Izaka-ya Kasu Udon Fuudo is an izakaya inside a building in Sapporo that serves udon, kushikatsu, and fish cakes. Mentai cream udon and kitsune udon are the signature items, ordered alongside kushikatsu and gyoza. It opens at 6 PM, limits each table to two hours, and runs happy hour from 6 PM to 7 PM. Smoking is allowed indoors, which makes it hard to stay long.