Naeun becomes Siwoo's little bitch. Her master orders her around anywhere, anytime whether it be the in the classroom, in the streets, in the restroom. He explores his slave's exhibitionist kinks and fucks in the restroom at Christmas eve.
Siwoo takes peeks at Naeun filming racy content for her secret account in an empty lecture room, he later raids the room and protects her from getting caught. When the strangers leave, he makes a bet with her, and if she loses, Naeun becomes his slave for life.
During a three-day workshop, Soo-Ah was on a separated from both of them in other bus, while Sang Hee and Jun-Ho were on the same one. On the bus ride, Jun-Ho noticed everyone was asleep. Seeing Sang Hee in a skirt reminded him of when she was a kid. He looked around to ensure no one was watching and tried to touch her. She woke up, and he gestured for her to be quiet before sliding his hand into her panties to finger her.
Meanwhile, Soo-Ah texted, asking where their bus was because she wanted to switch. While being fingered by Jun-Ho, Sang Hee messaged Soo-Ah back, claiming they were stuck in traffic due to an accident. The bus driver then announced a 30-minute break because of an accident up ahead. Sang Hee and Jun-Ho used this time to go to an isolated area to have sex. He took her in a lustful leg-lock position.
Mi-seong, who had already arrived at the stop, was looking for them and saw them rushing toward a secluded area that wasn't the restroom. She watched them have sex. Jun-Ho then switched to the ekiben (Stand & Carry ) position and creampie her. Afterward, Sang Hee went to the restroom. As she was running, Jun-Ho noticed she was dripping with cum.
He receives a handjob from her and cums on her face. In the next scene, he has to let her sit on him during the meeting and is told to touch her pussy.
Do-hoon is more motivated than ever to take revenge. So, he set his eyes on completely taming his bully's mother (Lee Sohee). In a dark office room at night at their workplace, Do-hoon promises that It'd be their last night together, so he goes hardcore on his boss by putting her on a leash and enjoying a steamy night taming her and turning her into his bitch.