"The King's Affection" is a South Korean historical drama that aired in 2021. The story revolves around crown prince Lee Hwi, who is forced to disguise herself as her deceased twin brother to protect the royal family. This leads to complex situations as she navigates court politics and her growing feelings for Han Sung, a trusted bodyguard. The series explores themes of identity, love, and sacrifice within the confines of a rigid monarchy. It highlights the challenges faced by women in a patriarchal society while providing a captivating narrative filled with intrigue and romance.