It's bc his dad and brother are responsible for ruining taeyoon's life you don't want to be related to that type of person
His father is also the reason why his other father died, he would know at that point that it’s not him that’s the issue but them. Sure it may be a shock, but not to the point where he leaves his lover, I mean are we forgetting ml literally enslaved him at the start? They are all guilty of hurting each other but him, and only him.
I agree but do i have your permission to give you a spoiler on why he will be upset?
This man is suin else, why would learning about who is bio father ruin him?? Bffr, take him to therapy if it’s that bad, is he that mentally unstable and weak that he’d crash out so severely??tf??