The 9th Princess of Western Liang travels to the Central Plains to marry the Crown Prince. Xiao Feng leaves her life as the 9th Princess to become the Crown Princess. Her black-bellied Crown Prince husband is second to only the Emperor. The Eastern Palace is perilous. Prince must marry foreign Princess for political reasons. He has a concubine, but she lives on her own. Two parallel lines collide in a dangerous and deadly power play, and memories are buried deep within.