In 2436 AD, young twins Thor and Rai are living on the space station Space Colony Juno. Their entire lives are turned upside-down when one day they discover their parents are murdered, and then they are kidnapped and ushered to the foresaken "Planet of the Beast King" by unknown masked men.
The twins must fight for their very survival in this bizarre, harsh world, infested with giant carnivorous plants and populated with criminal outcasts from across the galaxy. Not only that, they must confront the "Beast King" if they ever want to even hope of leaving the planet!
Story and art by Natsumi Itsuki.