Jang Hyewon was the daughter of a noble bloodline, though their bloodline was all that was left. After her parents' deaths, Hyewon lived with her uncle and his family in a loving environment. Until the Royal Edict came. Women from high-ranking families from across the Empire were called to the palace to participate in the First Princess Consort contest. It was the last thing Hyewon wanted to do, but she had no choice. Upon her arrival at the palace, her life would take a completely unexpected turn as she was plunged into the machinations of royal family politics. She would start as a consort-to-be for Yi Gong, the Crown Prince, but end in the hands of his older brother, Yi Shin, as his assassin in the shadows. When she finally meets Yi Gong again, how would their past feelings interfere with the plans Yi Shin had for her?