Mr. Queen[2] (Korean: 철인왕후; Hanja: 哲仁王后; RR: Cheorinwanghu; lit. Queen Cheorin) is a 2020–2021 South Korean television series. Directed by Yoon Sung-sik, it stars Shin Hye-sun as Queen Cheorin and Kim Jung-hyun as King Cheoljong. Based on the original Chinese web drama Go Princess Go, the drama is about a man named Jang Bong-hwan from the modern age, being trapped in the body of Queen Cheorin in the Joseon era.[3][4] It aired on tvN every Saturday and Sunday at 21:00 (KST) from December 12, 2020 to February 14, 2021.[5] Despite its controversies, the series is the seventh highest rated drama in Korean cable television history, with the last episode reached a nationwide rating of 17.371% and garnering more than 4 million in viewership.[6] It also set a record for tvN by achieving the 5th highest rating in the network's history.[7]