Jan 1, 2020-Jan 1, 2021
Choi Yoonjung (최윤정) is a South Korean trainee. She is a former member of the trainee girl group CSR (formely know as 05Class). She is also known for being a contestant on the survival show My Teenage Girl. She is a former trainee of YG Entertainment and a former J Planet Entertainment trainee. She is the sister of Choi Jungeun.