@Everyday means everyday  'how to survive as a player' is good though it is smutty

@Unknown  read our sunny days!

@Devilslov  give 'black mirror' a try if you haven't already. it's not exactly the same but has the horror and romance aspect :)

@Daddycuminme  if u need to skip to ch 25 thats when it gets really interesting :)

my personal fave psychological horror bl manhwa are chesspiece, black mirror, and dreadful night. they are a bit tamer when compared to killing stalking but they do still have the somewhat horror element. otherwise there are still much darker ones such as sheep mask (only one i could think of off the top of my head sorry)

@Koku_  it becomes one but it might take a while based on the novel