As a model in the 1990s, Byun walked the runways in Seoul, Paris and New York, notably for the brand Kenzo.

[3] She began acting in 2002, and starred in television dramas such as Women Next Door (2003), You're Not Alone (2004), Can Love Be Refilled?

[4][5][6] In 2005, Byun became the creative director for clothing label Ellahoya, when it launched its higher-end line for the Hyundai Home Shopping Network.

[3][7][8][9][10] Known for her chic sense of style, in 2008 she became the host of talk show Olive Show, which featured trends in fashion.

[11][12] Byun also created the make-up line Licht in 2009, and has written three books.