Synopsis The Queen Mother orders the assassination of her stepson to protect her own son's ability to become king. Ari, a shaman of the Royal Star Mansion (Royal Astrology House), witnesses the murder. The pregnant wife of the palace's Chief Scholar helps her escape, and Ari vows to protect her unborn child, who has a "noble fate." Ari is arrested, tortured, and imprisoned. She tells her friend and fellow shaman, Jang Nok-yeong, to look after the unborn child in her stead. Ari is declared guilty of treason and killed. Yeon-woo, the unborn child Ari swore to protect, and Crown Prince Lee Hwon fall in love. Prince Yang Myung, the Crown Prince's half-brother, has also fallen in love with Yeon-woo, who does not reciprocate his feelings.