Sanada, a perverted employee hiding behind a serious facade, is secretly viewing women’s anus photos on his phone during a break when his boss catches him and exposes his fetish. Humiliated in the company chat, branded a freak, and dumped by his girlfriend, Sanada directs his simmering rage at his boss’s wife, Kanna. Mesmerized by the anus he finds as beautiful as her face, he strips it bare for a close inspection and repeatedly fucks her raw while obsessively worshipping the view.