The Desire Grand Prix (DGP) is a survival game overseen by an organization of the same name where players must protect the city from the threat of a mysterious enemy called Jyamato. Each participant is bound by the game's rules to continue playing the game until they die or are eliminated while the winner is rewarded with "the right to bring an ideal world to life". In other words, only the true heroes who win the competition can realize their desired reality.
Among the participants are Ace Ukiyo, a mysterious man and undefeated champion of the DGP who competes as Kamen Rider Geats, his rival Michinaga Azuma, a construction worker who competes as Kamen Rider Buffa, graduate student Keiwa Sakurai who competes as Kamen Rider Tycoon, and social media influencer Neon Kurama who competes as Kamen Rider Na-Go. As the group fights the Jyamato to survive and the monsters grow stronger, the truth about DGP and their creators is revealed.