D-1 Devastator

Ryo joined Yaesu, a vehicle company, to learn more about his missing friend Masato, who had also been connected to the Makuhari test course. There, a figure known as Gray Gear told Ryo to visit the course at night and operate a new machine to uncover the truth about Masato. Ryo entered the Vector Versus and drove it at high speed around the track. Reaching over 300 kilometers per hour, he was abruptly transported into an unknown dimension.