Rikako Tamiya, who sleeps with her friend's mother, VEC-096

Rikako lives with her husband and son, Akira. It seems like a happy family, but Rikako harbors a secret she can't tell anyone: her boyfriend, Takashi, whom she met on a dating website. Although she knows it's wrong, they maintain a physical relationship driven by desire. One day, Takashi learns that Akira is his classmate. Taking this opportunity, Takashi says something else to Rikako…