
I'm sorry but i think the romance between jinwoo and hae in is too forced... they don't have any chemistry. I think it's more makes sense if the FL is the healer girl from the early chapter.
This is my opinion....

Its done a bit abruptly but it does make sense, it was simply a curiosity at first from hae-in POV cause of his nice D *cough i mean smell & then him helping & saving her & so on, & that healer doesn't make sense to me cause after Reawakening he changed she can't fight with him, can't support him, in fact she even left him to die, i know its because she couldn't have done anything staying here but precisely because of that she cannot be with him but hae-in can, it 100% makes sense but it was done a bit quickly & abruptly

is it really end like this? or there's more? pls tell me the author X account or smth

Hiii there are 9 chapters you can read on here: https://kaliscan.io/manga/66346-room-without-windows
not the best quality tho

guys pls answer how many in his harem? and did he like the harem? I wanna read it but I don't like harem that much....

It's tagged as harem but truth be told kiyoung don't romantically love anyone. It's more to business relationship. Up till now (webnovel passes 1800 chap) he still isn't married to anyone (if you cast aside the fake marriage with another dude when kiyoung were in female body). And what's good about this story is that it is not focused on the love. But more to friendship and solution seeking (after his own people makes a mess)
novel reader please give me spoilerr, I remember that I read in the comments hajin end up with someone... please tell me who is itt!!!
ngl I love hajinxrachel
Spoiler marker
I heard he ends up with that assassin/mercenary lady he's working with now. I can't remember her name though. The one with long dark hair that isn't a student
he ends up with the captain!
I didn't expect that!