i find it really interesting that people tend to forget that this is a post apocalyptic dark story and look at it from just one angle (aka good and bad) like yeah sure there's no way this would have a "happy ending" but it's still too early to judge the characters, though so far guwon IS bad if we're working with a normal moral compass
I've been defending guwon's ass saying he has a split personality or something i just hope i don't get extremely embarrassed and guwon really turns out to be a black flag with zero explanation as to why he killed those family members lmao that'd really suck because i expected a lenient gangster considering the author's previous work

I'm tempted to think MC’s father was already an undead when Guwon came across them. We’ve seen before that the only time he immediately attacks something is when they’re an undead. With living people, he seems to spend a bit of time scoping out if they’re useful and worth keeping alive. This would explain why he’s so adamant about not having killed MC’s father, and stating that he hadn’t lied, but also hadn’t told the full story.
Another thing, because Guwon is fairly indifferent to killing, is incredibly strong, intimidating, and gets along well with the Hounds ( a trigger-happy group), I think a lot of characters wrongly assume he is a lot more violent than he actually is. He seems like a utilitarian. In a post-apocalyptic world, where those who are not useful are either deadweight or pose a threat to stabbing you in the back later on, only keeping “useful” people alive might seem rational. Overall, he hasn’t been shown to be all that eager to kill people. He spent time looking for a reason to keep MC alive when they first met, described killing the vet’s family as a shame, and gave in when the vet said the girl was needed as an assistant. Compared to the Hounds, who seem to be itching for a reason to kill people, it seems like a mildly bothersome chore for Guwon.