The narrative of an ordinary person stepping into a royal role isn't new territory, having appeared previously in stories like . This film explores that concept within the setting of 16th-century Joseon Dynasty. It centers on Kwanghae, a king portrayed as a figure from history marked by hardship. The individual who finds himself impersonating the monarch comes to understand the burdens associated with just rule. While it might seem inspired by actual historical occurrences, the filmmakers emphasize that this is an invented story. LEE Byung-hun takes on the dual role of both the king and his stand-in, marking his return to historical dramas since beginning his career. HAN Hyo-joo portrays the queen, who maintains affection for her husband even with the knowledge of his deception; she previously demonstrated promise in . The film comes from director CHOO Chang-min, whose previous credits include and , while HWANG Jo-yeon shares writing credit on .

Source on TMDB