Within the Andromeda galaxy lies a planet boasting an advanced human civilization. The kind Prince Itaka and the radiant Princess Lilia of another realm are on the brink of a romantic union that will secure their succession, when they spot an odd object drifting across the night sky. It eventually crashes onto the world, and a mechanical alien society invades King Itaka"s tranquil realm, enslaving almost all its inhabitants. On a destiny‑shaped evening Queen Lilia delivers twins; to avert doom, caretaker Tarama removes one child and hands him over to the warrior Balga. Unbeknownst to them, the infants possess formidable abilities that are essential for confronting the force intent on annihilating all human societies.