Do-Hoon's revenge story (as it stands): fucked and tamed So-mi's mom (His worst bully's mom) Mrs. Lee So-hee, raped his other female bully Ye-Eun and made her his bitch, and now sets his eyes on Kwak Bumsu's wife (His male bully's wife) Kim Hyuna. Do-Hoon sets things up to be alone with Hyuna in her house and pounces on her. Bumsu returns home later but Do-hoon still keeps on fucking Hyuna next to her sleeping husband.
Yoosun shamelessly comes back to the couple's place to fuck Yunho in the woods. Upon seeing her off Yunho jums Yoosun in the car and almost gets caught cheating by his girlfriend.
Ga-yung pounces on Kyung-Ho at the bar's bathroom but they get interrupted. Once they're out of there, she invites him for a fancy jacuzzi hotel room where they obviously bang to their hearts content.
Nam-Wook takes Ga-yung with him to an empty classroom (it's not empty) and fucks her really close to the locker where the Kyung-Ho & Seung-Ah were hiding.
Hye-sun wants to end her sexual relationship with Jung-hoo but he gets a boner after hugging her. Now he wants to fuck her so bad and starts to force himself on her. Ajumma stops him from groping her and gives him what he wants but it's the last time she's giving him a favor.
Gi-Tae attempts to get intimate with Nayeon, but she feels hazy and declines his advances. Respecting her wishes, Gi-Tae leaves the bedroom and heads downstairs, where he wakes up So-Mi.
After ordering her to prepare wine and canapés, Gi-Tae's focus quickly shifts from food to desire. Unable to look away from her, he commands So-Mi to strip, leading to a heated encounter right on the kitchen counter. After a messy finish, Gi-Tae invites So-Mi to the bedroom to continue their night of passion.