Directed by Yoon Sung-sik, it stars Shin Hye-sun as Queen Cheorin and Kim Jung-hyun as King Cheoljong.

[6] In the modern age, Jang Bong-hwan (Choi Jin-hyuk) is a head chef who works at the Blue House.

After a near-death experience, and falling into a pool, he finds himself in the body of So-yong as Queen Cheorin (Shin Hye-sun) in the Joseon period.

[18] The series reunites actors Kim Jung-hyun and Seol In-ah who previously acted together in the drama School 2017.

It also marks the second collaboration of Shin Hye-sun with actors Bae Jong-ok, Kim In-kwon and Lee Jae-won [ko] with whom she acted in the film Innocence and the dramas Angel's Last Mission: Love and Legend of the Blue Sea, respectively.

Bong-hwan's soul in the Queen's body can play a traditional Korean musical instrument, and remember Hong-yeon as her friend when they both were younger.

Bong-hwan gets upset as he loses his true identity from the present day, and his thoughts are now heard in a woman's voice.

[44] The series was also criticised as the author of the original Chinese drama has made negative remarks about Korea in their other work.

The producers released a statement clarifying their stance and apologising for the controversies, adding that they were not aware of the negative comments made by the novelist.

[51][52] As per Nielsen Korea, the final episode logged a national average viewership of 17.37%, breaking its own highest ratings, thereby making the series 5th highest-rated drama in Korean cable television history.

It reached Top 10 in TV in 33 countries from Africa, Asia, and the Americas including Brazil, Bolivia, Ecuador, Mexico, Peru, Kenya, Morocco, Nigeria, Australia, New Zealand, Bangladesh, Hong Kong, Indonesia, India, Malaysia, Pakistan, Philippines, Saudi Arabia, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, Turkey, and Vietnam.