Natsumi Itsukis mind-bending sci-fi epic about a pair of well-to do twin boys who are sent to a frightening prison planet filled with man-eating plants and even fiercer tribesmen and women.

Young Thor discovers that his life of middle-class comfort has been replaced by a survival of the fittest existence, where he must fight to become the Beast King, the one person who is allowed to leave this dangerous prison planet.

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Twin Brothers Thor and Rai, the sons of murdered parents are sent to prison star Kimera. What is waiting for them is a planet where meat-eating plants rule and society is divided in four different colonies based on skin color. Will the boys survive in these harsh conditions!?