The creatures from outer space who enter our planet via space anomalies are referred to as Devolved. Ryouma has experienced bad luck for as far back as he can recall and when his school becomes a target of extraterrestrial hostility, he sees it as just one more painful occurrence in his life. Yet, amidst the hostility of the savage beasts, an unusual teacher emerges and offers him an opportunity. Ryouma is infused with Getter Rays, a mysterious cosmic energy that grants users the competency to operate Getter Robo – the most advanced combat mechanism!
