Takahashi Tetsuo, a biology teacher at Shizaki High School, has been fascinated with "demi-humans," beings with characteristics that differ just slightly from humans, since he was in college. He wishes he could have a chance to talk with one, but since the demi-human population is fairly low, he's never even met one. But then the school gains a new math teacher, Satou Sakie... who happens to be a succubus.
I mean, I'm a vampire, you know?
أعني أنّي مصّاصة دماء، أتعلمين؟
Hör mal, da ich ein Vampir bin,
Yo soy un vampiro.
Yo soy un vampiro.
Un peu.
Sai, io sono una vampira,
Tipo, eu sou uma vampira,
Знаешь, я вампир.