Jinhee feels threatened by Hyunji's advances on her brother, so she tries to claim him by giving him a practical sex ed session. They get cut short because of the AC Repairman.
After successfully seducing her, Jaejun gets to enjoy a steamy car sex with Yumi; both a battalion commander & a milf that had been friends with his mom for over 30 years. She had forgotten what she represents to him as she solely focused on bouncing on his dick too much for a woman who hasn't had her breasts sucked since her daughter stopped breastfeeding.
