Famous for her roles as Mi-do and Choi Hong in the respective South Korean films Oldboy (2003) and Rules of Dating (2005), she is also well known for her Korean Film Award and Blue Dragon Film Award-winning portrayal of Yeo-il in the acclaimed 2005 film Welcome to Dongmakgol. She started modeling in her early teens and, after earning guest spots on several television shows, made her big screen debut in the 2001 movie Nabi.
