Demi-chan wa Kataritai

A high school biology teacher named Tetsuo Takahashi has a long-time interest in meeting demis—beings such as vampires, dullahans, succubi, and snow women. At the start of a new school term, he finds four of these creatures enrolled in his school. As he interacts with them, he helps them adjust to the challenges of high school life while learning more about their unique identities. The manga includes five additional chapters beyond the main story.