Chaeeun

On March 18, 2023, Chaeeun, alongside Seungchae, were revealed as the first two members of ADYA (formerly Starting Girls) through an appearance at Seoul Fashion Week. The group debuted on May 9, 2023 with the single album "ADYA". On September 8, 2025, Chaeeun was identified as a contestant on Mnet's survival show Unpretty Rapstar: HIP POP Princess.

A day later, she was officially revealed as a contestant under her birth name Yoon Chae Eun. She ranked 13th place overall in the finale episode, thus being unable to debut with H//PE Princess.