Countess Phyllis is reincarnated with memories of her previous life intact. Phyllis is mistreated by her family because she is blind. She has a constitution that somehow has more mana than others, and one of the reasons she is heavily disliked is because of her ability to use magic without difficulty. As the story begins, Phyllis is attacked by demons while out on the road. She then finds herself alone at the bottom of a deep valley... In despair, she is saved by a large wolf, a "sacred beast" of legend.

Together with this wolf, Garu, Phyllis sets out on her adventure.