Thread:Gokyr586/@comment-24661512-20180122093519

I am confused by whether Nanba Heavy Industries and Nariaki Utsumi should be considered as Rider creator of Grease. It is a fact that they made the driver for Grease, but, technically the driver is created by Sento, Nanba and Nariaki just made the driver from data／blue print, like engineers only. So do these two "driver maker" hold the status of "Rider Creator"? 