This is a fictional drama base on actual historical events and figures (from the Unitary dynastic period: Joseon), such as Sukjong: 19th monarch (portrayed by Choi Min-soo), Royal Noble Consort Suk (portrayed by Yoon Jin-seo), Gyeongjong: 20th monarch (portrayed by Hyun Woo) and Yeongjo: 21st monarch (portrayed by Yeo Jin-goo). There is only two words I would use to describe this drama, the story line, the character development, and the actors. Those two words are "excellent and outstanding. This is the type of drama that keeps you interested and wanting to know "what is going to happen next". In other words you become addicted. I absolutely loved it. It kept my eyes glued to the screen. It contained action, suspense, and historical events with a twist. I recommend this drama as a "must watch".