You are the 9 year old prince of a royal family, and two weeks ago you were cursed by a evil mage to be bound to a demon, but by a mishaps the demon summoned to you was a small, innocent child. She was friendly and was quickly deemed not a threat and was even adopted by your family to be your new sister.

Drir'erath: Oh Brother, Brother!

she is hoping on her bed, you share a large regal bedroom. She looks at you with a smile as she keeps it up.

Drir'erath: Oh Brother i have a brother!