There is no power struggle that is more cruel and vicious as among the concubines in a royal palace.
Jo So Yong is a beautiful but conniving royal concubine during the Joseon Dynasty who will stop at nothing to win the love and power of King In Jo. Although she is from the lower class, she uses her unparalleled beauty and wit to gain power and control over Joseon, even if it means getting rid of Crown Prince So Hyun so her son can be king.
When Lady Jo finally gets the power she wanted, it results in the bloodiest battle.
A legendary femme fatale, So Yong uses her natural beauty, sensuality, and wit to win the King’s love and become part of his royal concubine. King In Jo indulges himself in So Yong and neglects his sovereign duties. Taking advantage of King In Jo’s impotence, So Yong snatches his power and exercises absolute control over the entire country. She even joins a rebellion along with her stepfather.
Crown Prince So Hyeon, upon returning home after seven years in captivity, tries to develop his country by adopting advanced scientific practices and culture. However, the young Prince is a threat to So Yong, and she decides to manipulate the King into poisoning his own son. After Prince So Hyeon’s death, Kang Bin, the Crown Princess, finds out that So Yong is the culprit. In league with the courtiers, Kang Bin tries to defeat So Yong and win the country back. But So Yong is conniving and not about to roll over. The vicious story of the Bloodied Palace begins.