Rui Nezumi is an overly stern, flawless female boss with a big head. While she's competent at work, she unknowingly makes enemies and becomes the target of her underperforming subordinate, Kato. One day, Rui is suddenly brainwashed by a mind-control smartphone in the office and forced to humiliate her anus according to Kato's desires. The urge to 'overcome those with small assholes' drives her into a frenzy...
