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.
Satou-sensei, about the other day...
...ساتو-سينسي، بشأن ما حدث ذلك اليوم
Profesora Satou, lo del otro día…
Profesora Satou, lo del otro día…
Professoressa Sato, riguardo all'altro giorno...
Professora, só para esclarecer...
Сато, извините, что я тогда...