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.
The injustices of this world.
.عن الظّلم الّذي في هذا العالم
Von der Ungerechtigkeit
auf der Welt.
De las injusticias del mundo.
De las injusticias del mundo.
De l’absurdité de ce monde.
Delle ingiustizie di questo mondo.
Das injustiças deste mundo.
Об абсурдности нашего мира.