Honestly, if we saw Jihyun's perspective, a guy who was never given a chance. Like he was charged for a crime he didnt commit, lost trust from the one he loved, and now is probably never allowed to even be his friend anymore. It doesnt excuse his actions and bad decisions, but it could've change him and his future. He may be a bad guy, but he was never given a chance to be a good guy. Just my opinion though
In granny's okchun's notes, it said never forget Kim Mi-ok Granddaughter. That made me tear up, as someone who's grandma had dementia, I cant tell you how much it hurts to have your family forget who you are.