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.
Oh, nothing, really.
.لا شيء في الواقع
Ach, nichts.
No, nada.
No, nada.
Rien. Je n’ai rien dit.
Nulla. Non farci caso.
Nada. Nada, não.
Да нет, ничего.