if you're here to get some fluff, cutey school-life BL, I'd say, you click the wrong manhwa. just go brush your teeth and get some sleep. but if you're here to get some shit that could get on your nerves, you might want to try this. notice that this contains abusive relationship and blown-up character, suicidal thoughts and act of murder, so it's pretty much triggering for some people. although I could say this has an open-ending, I suggest you prepare some kleenex when you arrived there.
Killing Stalking