Fitch's first succubus work! A must-see for those who want to be teased and made to faint in agony! The lascivious succubus, a nightmare demon who descended to the human world, absorbs the energy of human males when they are holding back from ejaculating, and multiplies their own genes... And the place where they can efficiently absorb that energy is the human world's service-type brothels... They force the foolish males who come to these brothels to hold back their ejaculation, sucking out every last bit of their energy until their bodies are turned into corpses.