The Doron Empire, hailing from the Ganymede system came to Earth in order to conquer it. Already, general Doron overthrew the queen Medusa of Ganymede in the Magellan star cluster. Earth's defenses were no match. In a matter of days, 95 % of the Earth fell under Doron occupation. Dr. Shikishima, a brilliant scientist places his last hopes for Earth in a robot he has created. The mother of Jimi would be reborn into a cyborg who is now the leader of the opposing forces and her memory could not recall the past. Source: Wikipedia