
I don't like Woo Won-joo but he is a very interesting character.
There has to be more than just a manipulative bastard. I want to know his motives and thought process. I also like that the protagonist isn't overtly naive, sure his intention towards Won-joo was crappy but like he's still a decent guy.

I don't hate the ex girlfriend. I don't have any particular feelings for her.
It looks like Jin used her as a beard and she found out and obviously got upset because she liked him. She seems nice mostly from her being worried about baby Min.(づ ̄ ³ ̄)づ
Maybe she has ulterior motives/will do something bad but we haven't seen anything yet, so I'm going to remain neutral/
1. bastard cheater
2. I didn't really have any expectations for this so I kinda dropped it to check in once in a blue moon to see how much shit-fuckery it could pull till its ending and uh well didn't really disappoint lmfao.