Succubus ni wa Ezuke shinai Koto. Seishi Drain de Taikakusa Gyakuten ~ Succubus Maid ni Seiheki mo Jinsei mo Mushibamare Mothercon Maso Ochi shite shimau.... | Don't feed a succubus. A story of sperm drain reversing the physical differences between the succubus maid and her master, turning him into a mother-complex masochist.