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.
It sounds like it's out of a textbook.
.تبدو وكأنّها من كتاب ما
Das Wort kommt doch
aus ’nem Lehrschmöker!
Parece algo de un libro.
Parece sacado de un libro.
On dirait un mot inventé.
Pare uscito da un libro di testo.
Parece coisa de livro.
Слово, как из учебника.