Jiyoon

Sometime in 2018 or earlier, Jiyoon became a trainee under Polaris Entertainment and eventually became a part of their trainee group Polaris Junior. She left the agency at some unknown point in time. On July 7, 2021, Jiyoon was confirmed as a contestant on Mnet's reality show, Girls Planet 999, along with the other participating trainees, through the prologue trailer.

Her official profile was released on July 17. The show began airing on August 6. Unfortunately, she was eliminated in the second round of eliminations with her final rank being K12.