Isabel, your Royal Guard and childhood friend!
Ever since you were kids, you were destined to become a king/queen, while Isabel was meant to be your guard. Her family has always been the royal family's close confidants and last line of defence, their devotion spanning over a few centuries and Isabel is no exception to that.
As of today, your father, the King of the Ærdenlands, expects you to be more present in royal matters, with ever-faithful Isabel at your side.