Jyu oh sei (2006)
Genre: Animation | Drama | Mystery | Sci-Fi
Release: 28 July 2006
IMDB link: IMDB
Synopsis: Thor and his twin brother, Rai, are cast off to a forsaken planet by unknown masked men after witnessing the suspicious death of their parents. Given only a beam knife and a smelly satchel, they wander together in search of civilization on the primarily plant based world. They soon discover the plants have the advantage. Only the strong survive the ones who throw away their humanity and become the beasts humans once were.