Court Lady Mishil seduces the kings of Shilla to gain power and influence over the royal court; a prophecy regarding twins promises her downfall.

King Jinpyeong and Lady Maya have twin daughters, forcing the king to send the younger daughter away.

Fifteen years later, Deokman lives a life of a merchant with her mother, Sohwa.

Deokman displays her wits against a Chinese official; Lady Mishil's personal guard tracks down Deokman as the twin and tries to kill her and Sohwa.

Princess Chunmyung leaves to give birth to her son and keep him safe from Mishil.

Chunmyung encounters Deokman and mistakes her for a boy; Deokman saves Chunmyung's life.