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.
That's why I dress and act to avoid 
evoking sexual thoughts,
لهذا السّبب تجدني أرتدي ملابس وأتصرّف 
،بشكل يجعلني أتجنّب إثارة أيّ أفكار جنسيّة
Deswegen kleide und benehme ich mich so,
dass ich keine unzüchtigen Gedanken errege.
Por eso me visto y actúo evitando
provocar pensamientos sexuales,
Por eso me visto y actúo evitando
provocar pensamientos sexuales,
Alors, pour ne pas me mettre
dans des situations compromettantes,
Per questo mi vesto e mi comporto
in modo da non suscitare pensieri eccitanti
Por isso me visto e ajo de maneira 
a evitar pensamentos sexuais
Поэтому я одеваюсь и веду себя так,
чтобы не вызывать полового влечения.