Being a fresh graduate and a little confused about his career, Kise blindly accepts a job offer from a prestigious high school. He was sure that his life is settled and he can know live a peaceful life, yet he never imagined in his darkest nightmare that he was falling right into a trap. His life was turned upside down when he met some super strong vampires who wants to suck his blood saying the same thing over and over. "Nothing is more delicious than your blood".