Ever since humans and yokai agreed to peacefully coexist, all kinds of supernatural beings have come to freely roam the streets of Kyoto. Among them is Saki, succubus extraordinaire and queen of her high school! But there’s one obstacle between her and total domination—Yuu Ashiya, the only boy who won’t fall for her charms, despite all her magic and beauty. And to make matters worse, he’s surrounded by a harem of other demi-humans! With her pride as a succubus on the line, Saki has no choice but to resort to more and more erotic methods to bring him down…