The Pillars suddenly appeared on Earth, posing a threat to all life forms. Running out of options to protect themselves, humanity finds itself on the brink of extinction, but a god named Odin offers them a way to salvation. Odin proclaims a counterattack against the Pillars by bestowing humanity with young female pilots with supernatural powers, the Valkyries, and their spirit fighter planes as a means of fighting back.

The battle between humanity and the Pillars has not abated, even after several years have passed. The Valkyries in their spirit fighter planes, as well as the men who support them, risk their lives in the skies to save the Earth.

Japan is no exception. Three Valkyries fight against huge Pillars that tower over sacred Mt Fuji. They are all very skilled, but every last one of them is a troublemaker. An ace pilot joins them from Europe, but she has a checkered past...

"Humanity, now is the time to fight back. The final battle of Ragnarok is fast approaching."