I was referencing the creator of the post using other stories to defend Dukes actions. Also I get the author doesn't really detail others live but they show enough that tells you what type of person the character is. With this we get to see how they change after meeting Jiwoo. Its over 300 chapters in and the only things that's really changed about Jiwoo are his fighting capabilities. While Kayden, Jisuk, Subin, Woo, Kartein, the Korean Awakeners, world awakeners, Frame, and others have went through character development. The backstories aren't needed to push the plot so why oversaturate the story with them?
I'm sure if Dukes family had something to do with his personality we would've got a backstory like Jisu or Sucheon. Duke was simply a person from a privileged family who seeked validation from his idol and would to do whatever he could to get it. Sometimes it's just that simple, and I appreciate the author for that. Every villian character doesn't need traumatic backstory on why their an ass****. It's okay to write about people who let there egos get the best of them w/o a sob story.