[2] She immediately rose to musical theatre stardom and has since starred in South Korean stage productions of Jekyll & Hyde, My Fair Lady, The Three Musketeers, Elisabeth, and Marie Antoinette.

[5] In contrast to many of her peers, Kim did not attend a performing arts high school and has stated in a 2013 interview that she had started out playing the violin and actually shunned singing.

[9][10] Prior to switching to musical theater, she made her Seoul Arts Center debut, starring in La bohème (as Mimi)[11] and The Magic Flute (as Pamina).

[17] Kim gained wider public recognition through her appearances on variety shows and televised music programs.

As working musical actors, they largely avoid starring as a married couple in the same production but made a rare exception for The Last Empress and Elisabeth.