Nozomi, who was worried about the lack of sex with her husband, suddenly noticed light coming from her son's room one night, so she opened the door and peeked in. There she saw her son masturbating with complete concentration. Seeing her son's penis for the first time in a long time, it was more erect than she had imagined, and Nozomi swallowed her saliva... From that day on, Nozomi could not concentrate on anything other than thinking about her son's thick rod, and she ended up falling into a forbidden relationship with her son...