The Red Sleeve Season 1 Based on a novel of the same name, it tells the record of a royal court romance between the King of Joseon who believes his duty is to his country first above love, and a court lady who wants to protect the life she has chosen. Set in the 18th century, “Red Sleeve” depicts a love story between King Jeongjo and royal concubine Uibin Sung.
Sung Deok-Im is a court lady. She gets involved with Crown Prince Yi San and he falls in love with her. The crown prince eventually becomes King Jeongjo. He now desires Sung Deok-Im to become his concubine, but she refuses. Sung Deok-Im wants to live her life freely, something that will not be possible as a concubine. She also knows that life of a royal concubine does not generally bring about happiness. Yet, Sung Deok-Im becomes the concubine of King Jeongjo.