It tells of a poignant love story between a fictional king of the Joseon period and a female shaman and the conflicts and conspiracy of vying political powers.

The pregnant wife of the palace's Chief Scholar helps her escape, and she vows to protect the unborn child, who has a "noble fate."

The Queen Dowager seeks to make Yoon Bo-kyung, the daughter of the Prime Minister and her blood relative, the Crown Princess in order to maintain her clan's power.

However, the King is impressed by Yeon-Woo's intelligence and chooses her to be Lee Hwon's wife, infuriating Prime Minister Yoon and the Queen Dowager, who secretly orders Nok-yeong to cast a deadly curse on the new Princess.

Crown Prince Lee Hwon unwillingly marries Bo-kyung, but refuses to consummate the marriage by citing an unnamed illness and continues to brood over his "dead" first love.

Unaware of Wol's true identity, the Grand Royal Queen Dowager calls her to the palace so that she can cure her grandson's "illness."

[7] Filming began in November 2011, with child actors for the first six episodes, followed by the script reading session with their adult counterparts on December 25, at MBC Dream Center in Ilsan.

[12] The House of Choi Cham-pan was used as Yeon-woo's childhood home and the Korean Folk Village was used for local markets, private residences of commoners and night scenes.

[13] In March 2012, the drama's broadcast rights were sold to eight Asian countries, including Japan, Thailand, Hong Kong, Singapore, Taiwan, Malaysia, Sri Lanka, Indonesia and the Philippines.