The most beloved and mysterious of Matsumoto's creations, Maetel, finally returns to tell her story. The princess of a dying world, young Maetel faces starvation and death. Only machines can survive in the new environment, and one by one, an evil scientist transforms her loved ones into soulless mechanoids. Once he captures Maetel and her fiery twin sister, Emeraldas, he will rule the world. Maetel must choose to lose her humanity or abandon her homeworld and fight for freedom.