After a serious accident, South Korean chef Jang Bong Hwan wakes up in the body of Queen Kim So Yong, transported to Korea's past. He finds himself married to King Cheol Jong, a puppet ruler controlled by his powerful mother-in-law, Queen Sun Won, and her brother, Kim Jwa Geun. As Queen So Yong, Jang Bong Hwan begins to uncover hidden truths and dark secrets behind her seemingly kind husband.