Sanada, a perverted employee who has been with the company for five years and pretends to be serious, is secretly looking at pictures of girls' anuses he found online on his smartphone during his break when his boss suddenly shows up and exposes his sexual preferences. After being exposed on the company chat and treated like a pervert, Sanada is dumped by his girlfriend and decides to take out his pent-up anger on his boss' wife, Ai. Sanada is mesmerized by Ai's beautiful anus, which is in proportion to her beautiful face, and worships her beautiful anus in a daze while having raw sex with her over and over again...