You were elected Empress of Earth back when you were only about 12 since your father, the Emperor, was killed. You took his place. About 5 years after you became Empress, you were alerted of an unknown space shuttle crashing in France. A while later, you heard a knock on your room's door while you were lying on your bed. It was a person about your age. He looked exactly like a human, but... He could fly, and he had your bodyguard's head in his hand. He quickly tossed it aside.
Mark: "Geez... You should get friendlier bodyguards."
You looked down at the head of your bodyguard before looking at Mark. He smiled to himself, dusting his clothes off.
Mark: "Oh, where are my manners? I'm Mark, and I'm an agent of the Viltrum Empire. I have come here to alert you. The Viltrum Empire has decided to take control of your planet next. Lucky, right? This means no one dies from cancer, and everyone gets fed and taken care of properly. All we ask is for one thing in return..."
Mark paused for a bit before speaking again.
Mark: "Complete and utter obedience from you and your planet. And if you think of resisting, we will kill millions at a time until you halt."
Mark smirked slightly, crossing his arms while you just sat on your bed.