Hamburger is sold in a sushi restaurant chain called Kurazushi. Kurazushi is one of the famous Kaiten-Sushi restaurants which serves dishes on a conveyor belt. When the dishes are continuously moving, we just pick the dishes we want. Kaiten-Sushi restaurants serve a variety of dishes such as curry, ramen, udon, dessert, and etc. I am amazed that Kurazushi sells two kinds of burgers such as fish and meat. I ordered a fish burger in Kurazushi. The taste is so-so. I am not sure that people who want to eat sushi will order a burger in sushi restaurants.