When Michinaga enters the Jyamato Grand Prix, his best friend, Toru, who he thought was eliminated in the Desire Grand Prix, appears before him. To Michinaga's astonishment, Toru decides to work together to make his dream come true...

Meanwhile, the first round of the Jyamato Grand Prix, the "Lightning Jyamato Festival" Begins. Even if they win, and cannot become the Deza Shin, they can't overlook the Jyamato attacking people. Ace, Keiwa, and Neon transform into Kamen Riders and fight Buffa and the Jyamato Corps.

The game has begun that shifts the hunters to become the hunted...