YeoRi first appeared as a trainee under Star Empire Entertainment under the stage name Choi Ji-yeon in the survival reality show MIXNINE in October 2017. However, YeoRi was among four trainees from Star Empire who did not pass the auditions.
On September 16, 2019, Star Empire's affiliate label, Rising Star Entertainment, announced that Empire Girls would be officially debuting under the name ARIAZ in October. The next day, YeoRi was the fifth member to be revealed through a teaser concept photo.
- MIXNINE (JTBC, 2017) - contestant