the okinawa urban monorail, or the yui rail, is a monorail train line in naha, the capital of okinawa, japan. it is the only public train line in the entire prefecture, and right now the entire line is only in naha. it has 15 stops, beginning from naha airport and ending in shuri station. there are plans to extend the line to urasoe city. there are also plans to allow passengers to pay using suica by the spring of 2020.