Rui Otokoto is a big-headed female boss who is too straight-laced. While she is able to do her job, she unknowingly makes enemies of her own and becomes the target of Kato, her underdog subordinate. One day, Shimataha Otokoto is brainwashed by a smartphone in the company and is anally humiliated according to Kato's desire. Her desire to "overcome people with small buttholes" drives her out of control...