in one hand, initially sets the MC as a complete absolute piece of human garbage but it doesnt give any background or reason as to why he did everything he did to his fellow classmates, he was a "devil" because yes, the plot needed it to set its premise, and in the other hand, it does everything in order to reward him for his deeds:
he drilled a hole in some dude hand, this dude become his guardain making sure nothing bad happens to him or his love ones
he raped a girl, this girl falls in love with him and goes as far as allowing someone to rape her in order to aid MC
everyone who has every reason to hurt him or kill never does because "living is the actual punishment"
and his big punishment is that he goes on living as a mediocre man doing shitty jobs or being homeless when unable to get one of those, and there is ocassional one liners about
"im never going to forgive you" that never go beyond that, one liners that never lead to actual actions. Several girls fall in love with him, because of course, and this happens even when the girls are aware of his record of raping and torturing people, nothing ever bad happens to him besides some real quick episodes of "abuse" at the hands of some forgetable characters that never results in lasting damage or consquences
no one ever goes to the police, or chops his arms, or cut his legs, or gouge his eyes out, no, his suffering is feeling "wevy sowy" and at some point we have a character that has 5 years worth of evidence and yet she never went to the fucking police but instead chose to confront a man with a history of kidnapping, raping and beatings, genius
and something that pisses me off is how they constantly repeat this bullshit one liner "we buried that devil", like some kind of magical absolution from all the sins he commited, like by simply saying it everything is fine and dandy and despite being a serious work with a plot such as this there a too many panels of girls being cutesy and of characters having deformed "funny" faces
yusuke's has a harem of characters that constantly tell him how good he is, how much they appreciate him, how much they love him, and so on and on and on, and always ready to solve his problems
and how idiotic is the fact that he simply forgets all of this because he was feeling "wevy guilty, and wevy bad", he spends years doing such atrocities on daily basis but the guilt only develops when the plot was needing some shitty excuse for him to forget all of that, and some even more idiotic is the fact that he feels so guilty yet he never goes to the police, he never hands himself over, he never rats out his former playmates, so the whole guilt means shit when the character does nothing, he doesnt get punishment nor does he seek it and he constanly relies on the help of a piece of shit like aizawa to do his dirty work
this manga is garbage, apologist garbage that never delivers punishment, that shits on the whole "the MC is trying to atone" by having him do nothing to atone and at the same time having aizawa being some magical being capable of protecting him of everything at any moment, every character that ever had a reason to resent him or hate it, didnt, and the fucking ending with the idiotic moments: "oh, this guy raped me but i kind of love him, hehe", "oh this guy burn my skin but i kind of dont care", "oh this guy drilled a hole in my hand, hehe" like it was some fun times to remember,