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, which boils up, to his boss's wife, Jun. Sasaki, who admires the beautiful anus in proportion to her pure beautiful face, is crazy about her and worships her beautiful anus over and over again.