Sushi and Tempura Gion Iwai serves sushi and tempura omakase courses near Hanamikoji in Gion, Kyoto. The sushi uses a blend of four vinegars, and the tempura uses a blend of three oils. The restaurant has counter seats and private rooms, and staff in formal attire serve the tables. During sushi preparation, a chef coughed over the sushi, which is a hygiene issue.