Yes it only has 7 chapters and there's not a lot of content aside from sex. The author said she didn't think Jihyun was loved by so many readers so she's gonna draw another extra for him (don't know how many chapters there will be), it will be an alternate ending where Chiwoo accepts him, that's what I heard from instagram
That's unfortunate to hear. Sad that she fell under pressure to do that alternate ending. The reason why I like Back to School in the first place is because it's unlike typical, illogical yaoi where the ML falls for his rapist. It showed a more realistic story and reaction of Chiwoo being rape victim trying to get past his trauma.
I really don't know how she would write that alternate story where it would ever make sense to me for Chiwoo to not only forgive but end up in a relationship with his rapist.
Jihyun never actually redeemed himself for what he did to Chiwoo. Crying and feeling bad about what he did, after realizing Chiwoo will never want to be with him does not redeem him of the shitting things he did.
Are you sure that's not just fake news? I reread the final note in Back to School ( http://www.mangago.zone/read-manga/back_to_school/uu/iur_chapter-45.5/pg-1/) and it really didn't sound certain. For most of it, the author is pretty clear that she doesn't think Chi would forgive the rape and if they were to be together, Back to School wouldn't have even happened.
Then just don't read the other extra. Some of the readers want to read it and since the author also wants to draw it I don't see the problem here. After all It's just an alternative ending. If you want the unlike typical realistic version just read this one. It's not like the alternative ending will take away the specialness from this one. Personally I like both. We all have different tastes when it comes to manga. Don't think too deeply about it... ╮( ̄▽ ̄)╭
If your talking about that the rapist changed I dont think anyone would forgive there rapist even if they change because it doesnt deny the fact they raped sum1 cause sum1 I know got raped by sumone close and the person didn't forgive them but I do think shes making it into like a whole new "universe/story" like you said tho
I'm in agreement. I saw the raws and was immediately disappointed. I have mixed feelings overall about Back to School and it's not likely one I'll reread but I don't have anything against the author just at the end of it I felt mixed emotions about the story. I think showing an alt ending is kind of off-putting personally for story telling but I will let the author do what they like. I already feel ambiguous about the story and now it's like hey or take this alternative ending!

Sorry to break the news guys, the author's going to draw another extra where Chiwoo ends up with Jihyun, so you're probably gonna see Jihyun fuck Chiwoo soon.