It was a misunderstanding caused intentionally by the ”game system”, because they were too close/powerful. It basically made them hear that the other hates them, when in reality they were confessing that they like each other. They recently sorted that out though. At least that's what I recall
I think only Sehyun heard an altered version.
but how about the time when he played the game it seems the duke has killed him 3 times? did they have a beef before?
...well, the Duke had killed previous Kings for failing to do their job.
And then Sehyun...did that attribute surgery that hurt excruciatingly. And he tried to win them back.
I am quite confused as to why Sehyun feels that Luhak is hostile to him or hates him. Can someone elaborate?