An average-looking student named Inubou Ken was bewildered when he was transferred to an all-girls educational institution overnight. However, he soon finds out that the school is on a covert mission to teach the girls about men, and he is the chosen candidate for the job. Although it appears to be a perfect scenario for him to create a harem, it turned out to be quite different. To his dismay, he discovered that all the girls in the school are succubi, and he must guide them without jeopardizing his moral principles and values.
