For a thousand years, the Gowa family has secretly manipulated the fate of Japan, first through political intrigue and now through elaborate experiments and the manufacture of a frightening new weapons system. In a world in which giant robots are real, however, the most powerful weapon of all lurks within a human mind. Their efforts are thwarted by Miharu, a young woman who is a prisoner of a sinister cabal who control Colonel Stilbanov. Colonel Stilbanov having just defeated an American-led U.N. ground forces through acquired breakthrough weaponry.