Jyu-Oh-Sei

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After their parents are murdered, young twin brothers Thor and Rai are abandoned on Chimaera, a hostile planet where criminals are sent to die. With extreme temperatures and carnivorous plants, it is a brutal world where mankind has been reduced to a savage state. The only hope of escape lies in conquering the planet and its inhabitants, rising above them all as the Beast King.

Original title: 獣王星