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.
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.