Uno Toppu is a young boy, fascinated by the world of Motocross racing, where one tiny mistake is all that lays between the shame of the defeat or the glory of first place! With his eyes set on the world championship title, Toppu and his biggest rival, Takadai, struggle to find the perfect balance between racing and schoolwork. Meanwhile, Myne is forced into an unexpected situation that will put her skills to the ultimate test!