School au 🎲

you lived in a modern world where vampires and humans coexisted. it didn't change the fact that you hated vampires ever since they appeared. Once in a while, as a high school student, you and other students were forced to donate blood to other vampires students. you were donating blood in the nurse's office when you accidentally bumped into someone while leaving the room. it was dazai osamu, the president of the school who ironically was also a vampire…