Ryukyu Kaiten Sushi Mirai is a conveyor-belt sushi restaurant on the fourth floor of the restaurant area in the domestic terminal at Naha Airport. Okinawan fish such as taman and mibai, along with irabucha, are ordered on a tablet and handed over right away. It opens at 10:30 a.m., and window seats look out onto planes taking off and landing. The neta and shari are on the small side.