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.
Ah, yes, of course. I understand.
.نعم، بالطّبع. أفهم ما تقصدينه
Ah, schon in Ordnung.
Ah, claro. Lo entiendo.
Ah, claro. Lo entiendo.
Ah, je vois. Je comprends.
Capisco, capisco. Aveva i suoi buoni motivi.
Ah, sim. É compreensível.
Да, конечно, понимаю.