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.
But vampires can't stand to be hot, either.
.لكنّ مصّاصي الدّماء لا يمكنهم أن يطيقوا الحرّ أيضًا
Vampire wurden eben
nicht für die Hitze geboren!
Tampoco nos gusta el calor.
Tampoco nos gusta el calor.
Mais les vampires
n’aiment pas non plus avoir chaud !
Nonostante i vampiri non sopportino il caldo!
A questão é que vampiro
 também não suporta calor.
Но вампиры и жару плохо переносят.