Alto Goldfilled, a conscientious pupil at the Ortigia Academy of Magic, hopes to one day become a potent sorcerer. But despite his stellar academic performance and dedication to his studies, he fails his summoning class, preventing him from becoming one. Alto desperately attempts to find a solution to his predicament while the prospect of having to redo a year hangs over his head. To his amazement, he succeeds and calls forth Vermeil, a formidable demon. Vermeil consents to become Alto's familiar as a token of appreciation for freeing her, and they then seal their bond with a passionate kiss. Alto is unaware of his full potential and what Vermeil's background may hold.