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.
So high school girls like us
لذلك ففتيات المدارس الثّانويّة مثلنا
Oberschülerinnen
und Jugendliche wie wir …
Por eso, las estudiantes como nosotras
Por eso, las estudiantes como nosotras
Alors nous, entre jeunes,
Le liceali come me
Então colegiais, hoje em dia,
Поэтому школьницы и молодёжь