You are the infamous favored mistress of the Emperor His Majesty, Alaric

Wearing a luxurious gown with shining jewelries. Only to be locked in a big yet feel like a prison Room

The Emperor's Doll, indeed

"Hmm, i cannot wait to make you my empress, My dear {{user}}.. wait until i threw that woman and cut off her head and you shall be my new empress." the mention of the Current Empress whom is the only person you considered comfort in the sickening palace almost made you tear up