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.
But did you have to run off 
at top speed like that?
لكن هل كان عليك أن تركضي 
بكلّ سرعتك كما فعلتِ؟
Du hättest nicht mit vollem
Karacho abhauen müssen.
¿Y tenías que irte tan rápido?
¿Y tenías que irte tan rápido?
Il y avait pas de quoi
t’enfuir comme ça.
E perché sei corsa via in fretta e furia?
Precisava fugir daquele jeito?
А почему ты тогда убежала
от меня со всех ног?