The Pillars emerged out of nowhere above Earth, posing a menace to all life. As humanity was on the verge of extinction, a god named Odin stepped in to save the day. To oppose the Pillars, Odin launched a counter-offensive by bestowing the battle maidens Walküres and the "herocraft" as their wings on humanity. The war between humanity and the Pillars continues several years later, with men aiding the Walküres as they soar through the perilous sky to preserve the Earth. Japan is no different. Three Walküres face the colossal Pillar that looms over sacred Mt. Fuji. Each Walküre is talented, yet they all have flaws. Now, an ace pilot from Europe has arrived. "Humanity, the day of reckoning has arrived, and now is the time to strike back."