NGR - Nagasare - The wife who was raped by her brother-in-law and found out she had her first orgasm

Although she is happy with her husband, Umi is not blessed with children and spends her days in depressing ways. One day, my brother-in-law, Kyoichi, visits home for a memorial service... Kyoichi, a savvy and womanizing fanatic, relentlessly exploits the carnal desires that lie deep within her. "I was just swayed..." Umi tells herself, and ends up having a one-time relationship. However, the relentless caresses that are far from her husband's, and the stimulation of her cock that penetrates her to the top of her brain, instantly overwrites the pleasure. And before you know it, Umi falls into Nagasare after a secret affair with her brother-in-law...