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.
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.