Sanada, a secretly perverted employee, is caught by his boss looking at photos of women's assholes during a break. After the images are shared in the company chat, he is branded a freak and even dumped by his girlfriend. Seething with resentment, he directs his anger at his boss's wife, Maki. Entranced by the beautiful asshole beneath her equally beautiful face, he exposes and examines it obsessively while repeatedly fucking her raw in breeding sex.