The heroine is just one person! But a harem??? In front of her senior, Kitahama Eiji, who secretly admires the harem-like situation in manga and harbors feelings for him, Nanaura Rin can't help but play different "characters".
Whether she's acting like a tsundere, a little devil, a clingy type, a cool girl, or a demure one, the more characters she plays, the harder it becomes to contain her feelings for her senior. Will there come a day when Rin, who is a bit silly and quite oblivious, can express her feelings to Eiji just as she is...?