A legitimate daughter raised as a boy by her family for fifteen years is ordered by imperial decree to enter the palace as the heir apparent and become empress on the very day her “younger brother” is born. All of the capital is waiting to laugh at the Duke of Zhenguo's residence and the emperor. They sent a man to be empress? Yet on their wedding night, she uses a dagger to part the emperor's robes and smiles seductively. “Your Majesty, I’m overturning this game of yours.” Little does anyone know that beneath the imperial bed, under another identity, she has already gained control of half the court. This is a contest for the realm that begins with an absurd marriage. In a world where men rule, she will climb step by step until she takes the one and only throne above all others.