The end of the world, Ragnarok, approaches. Odin, Lord of the Gods, calls upon Lenneth Valkyrie, one of the three Goddesses of Destiny. Lenneth is tasked with recruiting men's souls worthy of becoming Einherjar—heroes who will serve the Gods during Ragnarok. As Lenneth travels through Midgard, the realm of mortals, to collect these souls, she encounters events that lead her to question her own identity and nature.