Miu Sakurai, age 15, attends a Catholic school where she prays every day for her admired Shion Amamiya to return her love. When that doesn't work, she places her faith in a book of magic and tries casting on...

A yakuza marriage royale filled with deception begins! Having received news that the one who manages to marry her will have all of the world in their hands, Ageha, the granddaughter of chief of the Tsukishi...