Summer's over and the semester has begun at the all-succubus school where Inubou Takeru holds the position of goodwill ambassador. In the midst of their wacky, erotic everyday routine, his sister's friend, Otome, suddenly confesses her love. The succubus high school girls invade his dreams with masochistic fantasies, and then take a peek into his past to uncover his relationship with the principal. Find out what naughty truth they catch a glimpse of!