Sushi Kai is a sushi restaurant near Maruyama Koen Station that serves omakase using Hokkaido ingredients. It serves tsumami and sushi in sequence, prepares uni as a rice bowl rather than a gunkan roll, and pairs a range of sake with explanations. The restaurant has six counter seats, and the chef, who trained independently from Sushi Miyakawa, explains ingredients and drinks in English. Reservations are accepted only by phone, which makes booking cumbersome for foreign visitors.