Yuna, who's a TA in the same department as Jinwoo (she's his senior), and also a Pornhwa artist. MC is her only reader as he's an outcast and also a gooner. One day, feeling very sad (because her drafts got rejected) Yuna calls Jinwoo into her office in hopes that he would comfort her, and he doesn't disappoint. She uses sex with Jinwoo as research material for the betterment of her work.
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.