In Green Legend Ran, our planet has been transformed into a strange new world where human life struggles on an Earth without rain or oceans - only vast, parched deserts. Mysterious objects from space known as the Rodo have gathered a cult following who now rule over the survivors of Earth. Ran, a young, hot-blooded boy, has sworn revenge against the Anti-Rodoist group, known as the Hazzard, for the death of his mother. In his quest, he meets and falls in love with Aira, a pretty silver haired girl, who everyone wants to possess for mysterious reasons.