A strange growth on a mysterious old woman leads the brilliant surgeon Ukyo Retsu into a 5,000-year-old battle for the fate of Japan, as he travels through time to fulfill his destiny by defending the future from invasion by a race of demons bent on subjugating humankind.
When Aoi falls into a job at the café he feels like things are finally looking up- until Keiichi Iwase shows up. Did this day just get worse, or better?
The story takes place on a planet Tokinea where human beings and Star Races have been fighting. The story revolves around a girl who was made as Demon God, an ultimate weapon against human beings, and a boy who is a partner of the girl.