
And for all of you who hate them together: you don't even know their relationship. We haven't been given enough information about Hee Bum or Yoo Won so please just be happy for them! I'm sure Jumi will be happy too!

You haven't been reading, then...? The way Yoo Won treats Jumi and Hee Bum is happening here and now and he is only being judged on the present. Not in the past and not in the future. Therefore, whatever happened/happens in the past/future is irrelevant. Ktbn.

well we do know they broke up because that's what yoo won wanted. yoo won broke hee bum's heart even after he begged and asked not to break up. and now he insists they hang out together again and even kisses him. it just seems selfish of yoowon to play with heebum's feelings like that. i mean, aren't readers allowed to feel frustrated over this?

It's pretty easy to figure out. Bum is special to him so he wants Bum to experience his first murder just the way Sangwoo did it (same place, same way of disposing of the body). Some sort of sick ritual for them to completely bond in Sangwoo's mind. (Of course, I'm assuming that Sangwoo's first murder was his father and this is where he buried him. But with all that we know, I think it's a safe assumption to make.)
I don't know about you all but this doesn't seem confusing? I don't think we're supposed to be understanding anything yet anyway. I'm really looking forward to this so thank you translator!