Sua

Sua became a trainee under J Planet Entertainment sometime in 2019 and was introduced as one of the original five members of the trainee girl group 05Class. In 2021, 05Class was transferred to the new agency Pop Music. Later in July 2022, Pop Music was acquired by A2Z Entertainment, thus she was transferred again.

On July 8, 2022, A2Z Entertainment confirmed the upcoming debut of 05Class, now known as CSR. Sua was officially confirmed a member of CSR on July 14. She made her official debut with the girl group on July 27, 2022 with the mini album Sequence : 7272.