She became a regular member of the Korea National Ballet in 1987 and danced as prima ballerina until 1992. She acted as member of the direction committee from 1993 to 1995 and worked as the 3rd head and artistic director of the Korea National Ballet from 1996 to 2001. She created Ballet with Commentary (a new program), and collaborated on a work with world artists such as Yuri Grigorovich and Jean-Christophe Maillot.