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.
Do-hoon reveals his true identity to Ye-eun (his other bully in high school) making all her fears come true. So, she tries to silence him by offering money & a sincere apology but that's not what interests our MC, so obviously he wants to have his way with her in a meeting room using her filmed bullying acts projected on the room wall as a threat.