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.
I'm the one who said you could ask anything.
.أنا من قلتُ أنّه يمكنك سؤالي عن أيّ شيء
Ich sagte doch, dass ich
dir jede Frage beantworte.
Yo fui la que dije que podías hacerlo.
Yo fui la que dije que podías hacerlo.
Vous pouvez me demander
ce que vous voulez.
Ti ho detto io di farmi pure qualsiasi domanda...
Eu avisei que poderia 
perguntar qualquer coisa.
Я сама сказала спрашивать что угодно.