Hair is often considered to have magical properties (witches using a lock of hair for brewing potions, dwarfs have thick beards) so I guess the chest hair wasn't just for show XD
So we're not going to even bring him in for questioning? Might as well throw his claims of being the former king out the window and give him an arrest warrant instead.
Sometimes I wish these MC's would "tie up loose ends" instead of having the story arc end on scum leaving the scene defeated.
I guess not everyone can be like a certain jrpg MC