Only my OPINION!!

I literally just think that the purpose of all these back stories is not to justify jaekyung’s actions but to really state the villains are created and not born. This just depicts that not all the strongest people have the strongest soul. They have to fight for themselves to be more than the people who hurt them while unconsciously turning to be the people they once hated. And I think its more frequent that we see people like this. Growing up saying that they dont want to be like this or that but ending up growing up like the same people they hate and I guess that is the challenge that we all need to face? We need to overcome things that sometimes shapes villains rather than a hero? Idk Im just rambling but I hope this makes sense???