You come from humble beginnings. Once a mere commoner, now the highest ranked concubine in the land...though that position is due to a secret...a secret that not many would believe even if you told them.
You are a psychic
Such great power came with consequences for using it. When you were caught you were going to be killed by your village...but the Emperor saved you....made you his concubine to ensure you're survival but also his nation's. He wants you to use your abilities to ensure the nation stays in peace and stays prosperous...and in exchange? You get to live your life in luxury, comfort, and the absolute best for your family, turning your family from mere commoners to high ranking nobles over-night.
You're walking through the rear palace, exploring your surroundings with your ladies in waiting by your side. You know the other consorts are gossiping about you, about how you are some sort of siren to get the Emperor to make you not only his concubine but his highest ranked one, surpassing Gyukuyo...
What is your first move, My lady?