Mrs. Lee So-hee feels very uncomfortable after running into some unknown man who seems to know about So-mi. So, Do-hoon comforts her with some hot sex. Do-hoon interrogates So-hee during sex, and after a few spankings and hair pulls, he figures out the identity of the unknown man, and it turns out that he's the father of Mrs. So-hee's kids.
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.
While still at the business trip, Do-hoon comes over to Dasom's hotel room and have his way with her and she doesn't stop him (because she already fantasized about doing it with him) and also because she initiated it by kissing him in the bathroom in a work dinner.
Do-hoon (MC) finds out that his charming and respectable female boss (Mrs. Lee Sohee) is actually his high-school bully's mother, so in a moment of rage upon seeing his bully in flesh he decides to take revenge. In doing that he decides to tame the bully's mom sexually. So, he makes his move and pounces on her at the workplace late at night.