Hwi-Hyeon bought the Original House of Yun-Gyeong & gave back the house to her. They are doing the deed in the living room. Yun-Gyeong is very active during the sex, Hwi-Hyeon is fucking her Rough & Hard.
Flashback: Hwi-Hyeon saw Yun-Gyeong having sex with her Husband when he was a Teenager. Both saw each other & it turned her on even more.
While Tae-Yang and Vior are talking, their peace is shattered when two debt collectors, Gardner and Iyo, barge into the shop. When Vior can’t pay up, they start trashing the place. Tae-Yang steps in to stop them, easily dodging Gardner’s clumsy attack and knocking him back. He then subdues Iyo, demanding she pay for "damages"—specifically for re-opening his wounds during the scuffle. Since she has no money, Tae-Yang decides she can pay with her body instead, taking her virginity right then and there and finishing inside her as a means of "training" her.