In Norse mythology, the end of the world was foretold as the final war between the gods, and its name was Ragnarok. In a twist on the lore, the god Loki finds himself exiled to the world of humans. Mayura, a girl obsessed with mysteries, ends up entangled in Loki's struggle to return to the world of the gods without realizing it, and meanwhile, the gods divide into factions. Some are willing to help Loki find his way home, while others are after his life -- the end of the world, the final war: Ragnarok. And in the center of it all is Mayura...