NSPS-947 — "International Marriage Wife" Lewd Sex Without Her Husband's Knowledge Zhou Siyu

A Chinese wife is living happily in Japan. One day, she invites her husband's younger brother to stay at her house, and he seduces her and they have sex in secret. The younger brother has a different kind of masculine charm than her husband, who is just kind. However, since that day, she has not been able to contact the younger brother, and her sexual frustration is only building up.