The protagonist, Sorato Okida transforms into a Giant of Light that wields a red space boomerang, the Omega Slugger. Having lost his memories and fallen to Earth, his origins and his past are a mystery. When Sorato wills it, the Omega Slugger appears in his hand, then by loading the sparkling pendant he wears around his neck, the Omega Meteo, its wings open and he is enveloped in dazzling lights, transforming into a Giant of Light. Once transformed, he uses the red Omega Slugger on his head as a weapon and slick, exhilarating fights unfold. Whenever he faces someone, whether in the form of Sorato or Omega, the first thing he does is look them in the eye with his palm outstretched towards them. This fleeting gesture is his characteristic Omega Scope pose.