HTHD-209 — My Friend's Mother - Final Chapter - Mina Matsuoka

Mina had been cheating on her husband and son repeatedly, with no sign of being found out. She thought that if she played it well, she could continue to enjoy her infidelity while maintaining harmony in her family. But one day, her son's friend, who was visiting, overhears a call with her affair partner. Mina desperately tries to cover up the truth, but her son's friend, grinning, offers her a condition for keeping quiet: "If you want me to keep quiet, you have to do to me what you do to your affair partner."