On Planet Abel, humans and robots co-exist. One day a mysterious stowaway on a transport vessel tries to invade the planet, but is discovered by Apollo (Hayato Ichihara), a robot that looks like a human; and Mikaru (Aya Ueto), a human that looks like a robot. The stowaway had in his possession a memory chip containing the latest in camouflage software, the mysterious "Cipher"…