Kim You-jung is a South Korean actress. She started out as a model for a confectionery brand at the age of four and after her acting debut in 2003, Kim became one of the most in-demand child actresses in South Korea leading her to be called "Nation's Little Sister". Kim had her first starring role in the historical romance Love in the Moonlight in 2016 which catapulted her to fame as a leading actress in television and film. She ranked 8th on the Forbes Korea Power Celebrity list in 2017, the youngest to be included in the Top 10 at the age of 17.