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.
What were you doing there before 
the entrance ceremony, anyway?
ما الّذي كنتِ تفعلينه هناك قبل
حفل الدّخول المدرسيّ في كلّ الأحوال؟
Sag mal …
Pero ¿qué hacías aquí
antes de la ceremonia de ingreso?
Pero ¿qué hacías aquí
antes de la ceremonia de ingreso?
Alors, qu’est-ce que tu faisais
la veille de la rentrée ?
A proposito, che ci facevi fuori dalla scuola
prima della cerimonia di ingresso?
A propósito, o que veio fazer aqui 
antes da cerimônia de boas-vindas?
Кстати, а что ты делала
у школы ещё до открытия?