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.
Now, being a demi-human is seen as 
just another aspect of one's identity.
والآن، كون المرء نصف بشريّ يُعتبر
.كأيّ ميزة أخرى في شخصيّته
Gegenwärtig werden die Halbdämonen
als Individuen anerkannt.
Ahora, ser un semihumano es visto
como otro aspecto de la identidad.
Ahora, ser un semihumano es visto
como otro aspecto de la identidad.
À présent,
Al giorno d'oggi, essere un semiumano 
è diventato un semplice tratto peculiare.
Hoje em dia, meio-humanos são vistos 
como um aspecto qualquer de identidade.
Сейчас такие особенности считают
лишь одной из характерных черт личности.