The brave android Revo is awakened from his millenary sleep by Karlock, theft of the powerful magic sphere that is the beating heart of his planet named Sphere8. To retrieve the magic sphere, without which he is condemned to perish, Revo must pursue the treacherous Karlock to his planet. There he will find a hostile environment with obstacles and enemies that he must destroy to continue his adventure. To help him in his feat, Revo will be able to count on his infallible weapons, legendary swords and powerful guns. He will make new friends along the way that will help him overcome traps and obstacles. At the end of each chapter, fearsome bosses will be waiting for Revo to stop his pursue while hiding precious prices. They must be defeated to continue the chase and finally retrieve the magic sphere.