In a world where the situation is rapidly worsening, an unusual all-girls high school is taking in first-year girls who have been orphaned. However, when they show up to the welcome ceremony, they find out t...

Valhalla, the tower that lies at the center of humanity's defences from the Oculus, a race of enigmatic and feral creatures that slaughter humans. Descending from Valhalla, the warriors known as Valkyries ar...