Matou Kitan Zankan / Fairy Tale Zankan

Hentai is based on the same-name manga and its spin-off "Wolf Fang Flame Dragon" by Ruuen Rouga.

Japan has plunged into complete chaos. On the streets of Tokyo, strange creatures kill people and suck their blood. Most of the victims are middle-aged men. They are found bloodless and torn to pieces. Soon the local police realize that this is the work of a succubus and they are powerless. Our hero, an exorcist detective, takes on this strange case along with his loyal familiars - witch girls.