Spoilers for Park Geon-Tae

This is a spoiler for anyone curious about what happens to the hyung that betrayed Heeseong. By the way, I'm using HS for Heeseong, CY for Chi-young, and GT for Geon-tae.
Basically, CY locates GT in an abandoned warehouse and HS and CY go to find him. HS finds his hiding spot behind some planks of wood in a closet or something and sets up a chair and tells CY to sit and watch. HS finds an axe and breaks the planks revealing GT who is on all fours and looks like a beggar. GT then clings to HS's leg and tries to convince him to have mercy by saying that CY is just using him and that he'll be abandoned and that GT was the one who saved him. One of the funniest parts of this is when GT says that CY will abandon HS because of HS's shitty attitude and HS says that CY has a fetish for that. Anyways, HS picks the axe back up and GT gets really scared. HS then talks about how much GT has abused him in the five years they were together, but admits that GT did save him and therefore he'd save GT. He tells him to live a quiet life like a bug and kicks GT's ankle, breaking it. GT faints due to the pain and HS then goes to get the money that GT had stashed. It was in a briefcase that HS easily guesses the password to. CY is suprised and asked how he knew and HS tells him that it was GT's first love's birthday. Honestly, this part made me hate GT even more because when GT is being asked by CY about HS's birthday, he admits that he doesn't know it but HS always remembered to celebrate his. So, the fact that HS not only remembered and celebrated GT's birthday, but also knew how much GT's first love meant to him and knew her birthday, yet GT couldn't even remember HS's birthday is so messed up. Anyways, HS opens it and hands some papers to CY but CY was thinking about how sexy HS looked and he pushes HS to a table in the room and they have sex, WHILE, GT is unconscious in the same room.