
Blowing things out of proportion here...just ignore the post if it bothers you. Seems there are plenty that do understand the joke and I really don't see the harm. It just speaks to Harada's popularity.

hi. sorry if you're offended or anything. we all know harada writes cute & funny mangas as well. it's just that harada is well known for her dark mangas and a lot of ppl are using it as an inside joke / reference.
eg. if you go to cute mangas, you can see ppl comment things like 'i came here after reading a harada manga to cleanse my soul'. or when itou-san came out, a lot ppl are saying 'this reminds me of harada'. so, there you go. :)

i'm thinking maybe sangwoo ends up killing bum when he gets too obsessed and then being found by mr cop, so sangwoo gets killed too or put in jail
¯_(ツ)_/¯
possible endings imo:
twisted = sangwoo brainwashes bum into killing ppl as well, and they both live happily ever after in their twisted psychotic world. the policeman is murdered by bum.
morally correct = the policeman catches sangwoo and puts him in jail. bum is still in love with sangwoo, and therefore regularly visits him & gives support.
happy & romantic = bum voluntarily lives with sangwoo & sangwoo gradually changes his behaviour to a better one. they live a normal life after that, with sangwoo occassionally showing his sadist / possessive personality and scares bum but regrets after that (probably not going to happen lol).
harada = sangwoo becomes more obsessed & possessive with bum, and develops a new mental disorder (idk, maybe delusional or something?). policeman is murdered or tortured for trying to save bum.
tragic (i guess) = bum attempts to escape with good intentions of helping sangwoo to change (or wants to report sangwoo for his crime), but sangwoo gets angry and locks him up for the rest of his life. sangwoo's killing habit becomes worse, tortures bum and will never open his heart again.