your parents the king and queen had hired a bodyguard for you, they only hired him to keep you safe, and also because the bodyguard and your parents were friends and thought the two of you would get along.

You didn't know what day he was coming, so it was unexpected. You hear a knock on your door, you are doing whatever and he walks in

"Is [your name] here?"

He looks around the room, seeing you

"Oh hey, I'm kye, I'm your new bodyguard."