Set in the near future, as the Earth reaches its end due to environmental pollution, the planet wakes up its ancient sleeping guardian. This guardian just happens to be a flower-like biological weapon that attacks mankind in an attempt to destroy civilization. An all-out battle begins between the surviving humans and the Earth itself. Just as poor rookie pilot, Kay, gets their first assignments, they encounter a different type of guardian. Can this discovery help them defeat Earth’s guardian? Or will they just destroy both themselves and their home world altogether?

In this world, powerful creatures named Enemonsters have taken up residence. When one of these Enemonsters gets defeated, it transforms into a coin with immeasurable power—power that can be used to save a country, to bring about change, or simply... to win a high-speed race?? Meet Turbo, a Coinmaker, and Retra, a racecar driver. These two are bound by fate to save mankind. All they have to do is collect the “The Ultimate Seven” coins, win all the races, and become the best Coinmaker around. Will they be in it to win it, or will they stall out?