Seikon no Aria - 01 (German subs)

A terrible plague is rampant on a wild, medieval continent: the strong succubus powers lead to men who suppress their urges for too long to degenerate into wild monsters and attack peaceful fellow human beings. To prevent the spread of this disease, there are women in nuns’ uniforms who carry a sacred stigma on their bodies and have dedicated themselves to fighting Incubus disease as exorcists. Aria, who herself was saved by an exorcist as a small , has joined the order and, after a long and pious education, has now received the right to wear the sacred symbol on her body. But in order to save the men of this world from Incubus disease, she must not only slay those who have already turned into monsters, but also remove the pent-up seed that caused the problems in the first place …