Lim first rose to fame as the "TTL Girl" in a series of SK Telecom commercials, then pursued a professional acting career.

[4] Lim's performance was panned, with critics and audiences saying her unimpressive acting was merely a replay of her image in the TTL commercials.

Lim received good reviews for transforming into a nerdy high school girl who becomes Ryoo Seung-bum's love interest.

[6] She returned to the big screen in 2004, with leading roles in the horror films Doll Master and To Catch a Virgin Ghost, and the romantic comedy Marrying High School Girl.

After hosting the variety show !Exclamation Mark and starring in the short-lived sitcom Rainbow Romance, Lim stopped acting in 2006.