2021–2022: Acting debut, My Teenage Girl On May 12, 2021, Lee made her official acting debut in the web-series
I:LOVE:DM as a leading character. On May 31, Lee initially became the teaser model for the survival competition show,
My Teenage Girl. Later, she decided to join the show as a participant and was revealed as a contestant on September 13. Lee revealed during the competition that she was previously a trainee at the three major entertainment companies in South Korea. She was street cast by
SM Entertainment and became an idol trainee and then transferred to
YG Entertainment and moved to
JYP Entertainment as an acting trainee, however later left the companies due to her difficulty of being watched and evaluated by others during her trainee life.
Kwon Yu-ri, one of the shows mentors stated, "Lee is an all-rounder member, She plays a very important role. She can make the team shine on stage and show off her own abilities, she is someone with a variety of charms." Lee was unfortunately eliminated in the semi-final episode, resulting in 21st place.
2022-present: Debut with tripleS On June 2, 2022, Lee was announced as the third member of the girl group,
tripleS.{{cite web |url=https://www.xportsnews.com/article/1584326|script-title=ko:'방과후 설렘' 티저 주인공 이지우, 트리플에스 합류 ==Public image==