Tatsuya is a boy that survived alone in the "land of the dead", a place where it's said no-one can survive for more than three days. He sets out on a journey of revenge in pursuit of Mike DeVilas, the man who killed his father and left him at the edge of the universe. His first target is Goliath, one of the planets ruled by DeVilas. However, the Reapers are waiting there for Tatsuya and intend to eliminate him...