Fair Princess Jungmyung lives a life of the highest privilege, until her half-brother Prince Gwanghae executes the rightful crown prince and usurps the throne. Exiled from court, Jungmyung goes under disguise as a man and learns to adapt to life as a commoner — never forgetting Gwanghae's wrongdoing. But amidst rampant corruption throughout the kingdom, can Jyungmyung exact her vengeance, restore order and take back her rightful place in the palace?
Prince Gwanghae has been Crown Prince for 16 years without being confirmed. As the son of a concubine, he doesn't have the safety that his new-born brother, Grand Prince Yeongchang has. As King Seojo contemplates rescinding Prince Gwanghae's title, the nation is divided on who they support.