Rin Shiguma, a talented young racer in the world of mini four-wheel drive (Mini 4WD) competitions, secures victory in the Grand Prix by surpassing his rival, Waka, and achieving a new winning streak with his trusted electric model car, Soldier. However, his triumph is short-lived as a team of enigmatic racers, dispatched by Waka, emerges to confront Rin. Among them is the formidable Mr. Mecharic, a master mechanic and magician, who steps up as Rin's first formidable challenger. Unaware of the surprises that await him, Rin bravely agrees to face Mr. Mecharic in a thrilling showdown.