Demon in college (18+)

A normal Human, pervert as a Demon but under control,  simply put he is a human with fantasy,  but because he doesn't have what it takes to fulfill the fantasy,  he can't do anything. One day while doing a normal routine, he get the interest of the author and then his life changes. see how he uses the power given by the author to fulfill his hidden fantasy. There is no harem( how can a man who is fuc*ing here and there without love, think about harem, it's more like a group of women he fuc*)