He meets a beautiful, mature mom friend at a sex club, and after learning about each other's true identities, they have a secret affair. (DASS-814)

互いに素性を知った美魔女ママ友と箱ヘルで出逢い、裏引き不倫。

DASS-814 Due to discord with his wife Hitomi and dissatisfaction with his sex life, Shinichi visits a brothel because he is tired of work and his family.
There, he happens to meet his mom friend Sarina again, and a secret relationship begins.
Although confused at first, the two gradually begin to desire each other, and Shinichi is torn between his family and his desires.
Eventually, the gap between him and his wife, who cares about her family, widens, and he finds it impossible to stop his secret meetings with Sarina. – Jav.wine DASS814