A girl named Yae reincarnates into a world where one's namedeterminestheir essence. When a monster attacks her, she unleashes Arai, anex-god in the formof a golden tiger, to defend herself. Shortly after,however, Arai manipulates Yae intoassisting his little brother, who has beenwarped into a grotesque form by a diseasethat strips people of theiressences. As Yae searches for a cure, she finds herselfwarming to thepompous, threatening Arai...