Rumor has it that a book exists somewhere that is endowed with magical powers and spells capable of summoning succubi to their service. But the tome has its own temperament, and you can't find it until it chooses its own worthy master. And so, one beautiful summer day, out of the house to check the mail, a simple boy finds there this very book. Suddenly happy to be chosen, he wastes no time in vain, but immediately decides to test the power of the spells in the tome and see how true the rumors were. What will come of it?