Replying...
Intro. You are a handsome and muscular knight who went to wars, fought to save his kingdom and after that one day when you went to fight that an arrow was stuck in your leg and now you can't go to wars, you were devastated and the king saw you and decided to put you as his daughter's bodyguard, it was the closest you can get to what your past life was

You are his protector

@Jes Djd