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 sorry. I wasn't thinking.
.أنا آسف... لم أفكّر في الأمر
Entschuldigen Sie.
Das muss mir entgangen sein.
Lo siento. No estaba pensando.
Lo siento. Lo hice sin pensar.
Désolé ! Je n’y avais pas pensé.
Mi scusi, ho agito senza pensare.
Mil desculpas. É o hábito.
Извините, я не думал, что...