
I think theres 2 outcones to Mincheol's change:
Because Orange Head was bitter that he was consistently a good person and nothing turned it right he tried to make Haesoo the same. Probably inherited the debt, gave up on his dreams, everyone he thought he helped and was friend's with turned their backs on him, and felt neglected by Haesoo. Turned to whatever bad habits that helped him feel better, more alive, and justified it to himself that Haesoo didn't care; that she was just like the rest.
Or
All along he was doing his best to build a big facade because he lived off the popularity, the reputation, and Haesoo helped add to it. She was something he deserved and helped build him up and since we never saw the full expression on his face as he "blushed". Man's was probably getting off on his conquest. He looks awesome fighting a bunch of guys, and saved her from bullies because she would be damaged goods. Setting himself up for a big grandiose life that never came into fruition and just like in the other theory his life fell apart. Since Haesoo was a conquest and wrapped around his finger he stopped caring and put no effort because he grew complacent.
Either way I only see 2 different outcomes and based off what I've seen happen in other stories it's probably the second option.

I get the translation is bad but I'm able to make out what's happening just fine. I havent been confused about whats happening and the only real probablems have been pronoun inaccuracy. The story's dialog is pretty straightforward. For the record though the translation is worse then Google translate someone is intentionally making the translation heinous.

As much as I think ChungMyun is a good leader i don't he's the best suited character to be a Sect Leader. It's almost impossible to hold him in check and even with crazy character growth i don't think he'll overcome that. He's only held down by the fact there are people above him that he respects, as well as a healthy dose of peer pressure. I know he's trying to change and made hella improvements, but I think he's better off being a loose cannon who represents the sect. As well as an advisor who pushes them outside their comfort zone rather then just leading them. I think he should be trusted and respected, he's normally right after all, but that by itself aren't the qualities needed.
I think BaekChun would be better suited(at least as they are now there's obviously still a ton of story left and room for growth) to be Sect Leader. Man's always has a healthy dose of skepticism towards ChungMyun's shit but has very quickly known when to take a step back. As well as, in this chapter, he's shown he can still acknowledge that despite ChungMyun succeeding he still scared the hell out them and voiced it. I also don't think strength should be the deciding factor of who runs the Sect.
That said if ChungMyun continues to grow further and sees his peers as equals he would definitely have a fighting chance to change my opinion on the matter.

The author draws female characters very small as well but they look almost normal (keyword almost cause it's def not quite). I know they like small ukes but it's as if they're incapable of drawing smaller males so they take the tits off their chicks making them look even more like kids. The author definitely has an artstyle problem they need to work through because none of their characters look particularly pleasing to the eyes. Sometimes they look fine, but their more masculine characters look weird. Even the ML looks awkwardly soft in some pages that the author couldn't hide, even when they tried to overcome it by fucking with the face length and jawline.
The uke and other feminine characters (even across their other stories) look fine for the most part they also stay pretty consistent. Though I'm starting to think the author might have some other underlying...issues. I have my own problems with art being that every character I draw is definitely female coded. But you can tell when I'm drawing a child v. adult. I just really like drawing the female form so I'm better at it. Since I draw way less men in general my default is female with more masculine features so I have to work really hard to make them less feminine.
What I'm getting at, is the fact this author is suspiciously good at drawing "small" characters compared to the inverse. I say suspicious because one could kinda argue their females almost look like adults. But female characters have bigger eyes, smaller frames, and the only real difference in animes that separate short females from children are the boobs. So it's not as noticeable if they looked child like. Applying what i know about learning to draw i think this author might mostly draw children. Obviously I'm not going to claim this is fact but this author definitely has habits you get from drawing the same thing over and over again.
There are ways to make short, petite, male characters not look like children. Even when the concept is a pretty twink. It's a fine line to straddle but it isn't super hard. So the fact author has made a few different stories now and hasn't learned how yet is making me doubly suspicious.

I re watched the anime and I guess the first time i wasn't really paying attention (I've also re-read the manga I think i might just be illiterate) but I think Ruby's wish for Aqua to find the murderer is what ultimately re lead him down a path to once again find his revenge. I'm not gonna blame Ruby for the wish though as she was under the impression he was still looking and fighting for it. The Crow God though she knew Aqua was satisfied and still did what she did. Ill admit she's got me a little peeved.
The Crow God was orchestrating everything, was also listening to their wishes and ultimately that's what roped him in. I don't like little miss God because she seems omnipotent, but then also acts like she cares about the twins, and upon rereading up to chapter 163 and re absorbing the anime it's clear she cared about Ruby way more then Aqua as he was nothing more then a tool to make Ruby succeed in life without a hitch. She also high key admitted to Aqua's only purpose in reincarnation to begin with, was to make Ruby succeed.
Crow bitch gets bent out of shape, acting like shes soooo sad, that Aqua was breaking and that him getting revenge was going to ruin him. But she seemed to also actively be leading him down that path and even actively talked to Ruby (right after girly found the Doc's corpse) to really rub in that someone else was involved in Ai and Gorou dying. Aqua gave up on revenge because he found a good enough answer. But good enough wasn't good enough for Crow bitch because she lead Ruby to the corpse. Igniting one of the twin's need for revenge ie. Ruby's need who did not know and probably would've never assumed that Gorou was dead till then. She would've just lived her life upset that he hadn't come to find her.
After thinking about it too, the only outcome of Aqua not finding who actually killed Ai would be that eventually their dickwad father would have tried to kill Ruby. Aqua probably wouldn't have died in that time line; by then also I think he would have cared enough about Akane and healed enough to not fall apart afterward either. Even then! This is all assuming Ruby would have surpassed Ai and I don't think she would have. I think she would be decently famous and enjoy being an Idol. But eventually i think she would have had her fun and moved on. I also think regardless of the timeline she would have figured out who Aqua is. But either ending was unacceptable to Crow bitch.
I really don't like that Crow bitch acted like she cared about Aqua. The man's only needed and wished for freedom because the world he lived in, experiences he went through and memories he had were like a disease to his lively hood. Something that the shit crow actively facilitated. Ruby may not be my favorite character but I could logically argue for her actions and thoughts. The Crow God though I literally cannot with her.
She basically went "I'm so sad boohoo, you're Aqua Hoshino and you did your best. There there." The he was gonzo and acted like she wasn't the reason he was going to die.
Han Maru is so fucking cute. He's so sweet, and watching him panic in the dark made me so sad the poor guy jusy makes me wanna squeeze him. Ik he's not pocket sized but I wanna put him in it. I want him to have my babies and stay at home. I can't-