戦翼のシグルドリーヴァ (Associated Names)

The Pillars suddenly appeared above Earth, threatening all life. A god who called himself Odin came to the aid of humanity as it was driven to near complete defeat. To counter the Pillars, Odin declared a counterattack by bequeathing humanity with the battle maidens Walküres and the “herocraft” as their wings. Several years later, the…