Tekkaman Blade

Humanity faces its greatest threat ever: the Radam (Venemoids in the English version). They are an alien race bent on destroying humanity, but for what purpose? Not all is as it seems, and mysterious trees have been placed on the planet. Only one thing can stand up to them: a warrior named Blade, a Tekkeman/human hybrid. But what is Blade actually? Who does he really fight for? And who is he to begin with?