[HMV][SlideShow] Muchimuchi Dekapai Mara Gui Maou-sama to Onboro Yojouhan Dousei Seikatsu

The protagonist of the hentai is an ordinary corporate worker who, one might say, has become a slave to his superiors. He is a fat, ugly virgin living in a terrible, half-destroyed room in a local dormitory. However, he has incredibly strong libido and that is probably his only plus. But he can't afford to hire a prostitute because he has to spend almost all his money on suits and appearance to seem rich. Soon a series of strange events occur and the protagonist meets a beautiful dark-skinned beauty who declares herself a demoness and claims that his penis contains incredible magical power. The girl begins sucking the protagonist's penis with immense pleasure, trying not to spill a single drop of semen past her mouth...