Cuck play with her husband in the hotel room, they kick him out and she shows her husband the recordings later. After that Park Jun-Hyeon fucks her in her office.
Do-hoon meets up with Seo Ye-Eun at So-mi's workplace (Caffe) to discuss the latter's relationship with her father to furthermore understand her psychology. When Do-hoon gets his answers Ye-Eun tries to leave but he doesn't let her go and punishes her for putting him in a bad situation (That's his actual reason for the meetup). It turns out that she came to the caffe commando as he asked. While they were kissing, Ah-young (So-mi's little sister) happened to be at the caffe with a friend, when she saw Do-hoon, she follows him and takes peeks at him and Ye-Eun kissing. Do-hoon notices people's noise just outside and rushes upstairs to continue humiliating Ye-Eun.
After a boring sex session with her husband, Yoosun wants to get a taste of real dick from her husband's brother who was right behind her room's door waiting to fuck her.
Do-hoon makes Ye-eun attend the shoot afterparty where she drinks too much and gets drunk and dozes off. She awakens all tied up to Do-hoon who's about to torment her and make her submit to him by violating her asshole.
After having sex in the empty classroom during lunch time, the siblings came back to the lecture hall & Taesung started fingering his sister during lecture. He made her so horny that she had them hurry back home to fuck where Haeun grants her brother his wish of fucking her backdoor for the 1st time in her life.
While still at the business trip, Do-hoon comes over to Dasom's hotel room and have his way with her and she doesn't stop him (because she already fantasized about doing it with him) and also because she initiated it by kissing him in the bathroom in a work dinner.