Kinsou no Vermeil: Gakeppuchi Majutsushi wa Saikyou no Yakusai to Mahou Sekai o Tsukisusumu

Alto Goldfield is a student at a magical academy who aims to become a master of all magic. However, when he is on the verge of failing a class on summoning magic and in danger of being held back a year, he finds an old summoning grimoire. Following its instructions, he inscribes a magic circle, and ends up summoning a powerful demon named Vermei, who was sealed long ago, and makes her his familiar...