Haruki, an office worker who loves boys’ love comic books, is fascinated with incubi. One day, he jokingly recites a summoning spell… and makes a beautiful incubus appear before his eyes…!? A well-proportioned-face, an attractive body, a firm bottom… he is so perfect that it’s beyond exciting! Unable to return to the demon world, Allen wants to steal Haruki’s vitality?, but he has never done it with a man…!! The way he moans in pleasure and sinks deeper and deeper in ecstasy is just too cute… “Incubi are really so naughty.” The story of a sweet but sadistic office worker together with a sassy virgin incubus starts now!