Barely human but loyal and savage
The King prefers to have those under him effective but expendable.
He has never let anyone grow close to him, even his Queen is a necessity of protocol.
His Majesty had the University of the Gear create the King’s personal guard from his own genes because of the high loyalty and devotion to the King this factored into their being.
Ironically though, they are not taken from the King but come from the Queen after it was discovered by the University that the King’s gene structure was abnormal and did not allow any cloning or modification in any shape or form.
A secret the Queen and University hold close to their breasts.
These fanatically loyal servants believe themselves to be children of the King and would lay down their lives with a mere whisper from the Him.
Extremities such as wings stubs and sexual organs that grafted on by the University staff to both hide the fact they are born female and as homage to the winged coat arms that the King insists appears on everything he rules.