She is the eldest legitimate daughter of a general's household, unmatched in strategy. To uncover the truth behind her mother's death, she takes her twin sister's place in marriage and enters the Eastern Palace. On her wedding night, she is discovered to be a woman disguised as a man. It turns out she was never meant to marry the Crown Prince, but his newly appointed “male consort.”
On the surface, he is a frail Crown Prince. In truth, he is a fearsome king who has lain low for years. She thinks he is plotting against her, unaware that this marriage substitution was his plan all along.
She wears her sister's face and becomes his Crown Princess in a man's body; he looks into her eyes and says, “I know who you are.” In this battle of equals, the first to fall in love loses.
Later, he kneels before her. “Please, look at me once more.”
She says, “Your Highness, I am a man.”
