In the present day, Jang Bong Hwan is a chef who works for the country's top politicians at the Blue House. He has a free spirit, but his spirit somehow finds its way into the body of Queen Cheorin (Shin Hye-sun) in the Joseon period. King Cheoljong (Kim Jung-hyun), the reigning monarch, is a gentle and easy-going person. However, he is only king in name. Queen Sunwon (Bae Jong-ok), the late King Sunjo's wife, wields true power in the country and has relegated King Cheoljong to a figurehead. Her ambitious younger brother, Kim Jwa Geun (Kim Tae-woo), also desires power. Queen Cheorin soon discovers that King Cheoljong is not what he seems, and that he has a dark and suspicious side to him.
—Wikipedia