In a world where magic is a precise academic discipline, the bumbling student Alto Goldfield finds his academic career on the brink of collapse after failing a crucial summoning exam. Desperate to pass, he stumbles upon an ancient grimoire and unwittingly summons a beautiful and powerful demon named Vermeil, who is sealed within its pages. As a pact is formed, Alto discovers that Vermeil is not only a legendary calamity but also a playful and affectionate being who becomes his familiar. Together, this unlikely duo navigates the halls of the prestigious Ortigia Academy, where Alto must balance his studies with the chaos Vermeil brings. Their partnership draws the attention of rival mages and hidden conspiracies, forcing Alto to confront the true cost of wielding forbidden power. Blending fantasy adventure with comedic romance, this series explores themes of ambition and companionship, anchored by the dynamic between a timid student and his alluring, otherworldly partner. The voice cast includes Yoshitsugu Matsuoka as Alto and Maaya Uchida as Vermeil.