The Familiar of Zero

High school student Saito Hiraga is summoned to the otherworldly realm of Halkeginia as a "familiar," becoming embroiled in a fantasy romance adventure filled with four elements. He was summoned by Louise, his cute but magically inept master. Confused by the sudden appearance of this mysterious beauty, Saito encounters an unexpected forceful kiss after hearing her recite the contract terms. Subsequently, incomprehensible runes appear on the back of his hand, and he inexplicably becomes Louise's familiar. Set against the backdrop of Tristain Academy of Magic, a fully boarding institution, Louise and her familiar Saito begin their school life—full of courage and humiliation—amidst quarrels, reproaches, and affection. What fate awaits Louise and Saito amidst the turbulent interactions in this other world?