Sasaki, a perverted employee who pretends to be serious in his third year with the company, is secretly looking at an anus image of a girl he picked up on the internet during a break on his smartphone, when his boss suddenly appears and reveals his propensity. Sasaki, who was exposed to in-house chat, was treated as a pervert and was dumped by his lover, decided to direct his anger to his boss's wife, Jun. Sasaki, who is fascinated by the beautiful anus in proportion to the pure beautiful face, is crazy and worships the beautiful anus and fucks over and over again.