Vampire Knight is a manga and anime series set at Cross Academy, a boarding school divided into two classes: the Day Class and the Night Class. The Night Class consists of beautiful, aristocratic vampires who must suppress their bloodlust to coexist with humans. The story follows Yuki Cross, a human girl adopted by the school’s headmaster, who works as a guardian to protect the Day Class from the Night Class, alongside her childhood friend Zero Kiryu, a vampire hunter with a tragic secret—he was bitten and is slowly turning into a vampire. The plot deepens as Yuki uncovers her own mysterious past, revealing she is not fully human, and becomes entangled in a love triangle between the pureblood vampire Kaname Kuran, who saved her as a child, and Zero, who struggles with his own dark fate. Readers enjoy the series for its dramatic romance, Gothic atmosphere, moral complexity, and intense emotional conflicts between love, duty, and survival.