Chaekyung was born in Incheon, South Korea and raised in Siheung, Gyeonggi-do, South Korea.
She first debuted with the group Puretty in August 2012 in Japan but the group disbanded in 2014. In 2014 she was in the survival show KARA Project to become a member of KARA but failed. She was also in the survival show Produce 101 and ranked 16th in the final round. She then later debuted in the project groups C.I.V.A and I.B.I.
- "Clock" (with Chaewon) (2016)
- "Blooming Melody 2" (with Nam Tae Hyun, Giant Pink, Kanto) (2018)
- "Lovesome" (with VOISPER) (2019)
- Chaekyoung trained for 4 years.
- She is Catholic.
- She attends Sungshin Woman's University with Chaewon.
- Main article: Chaekyung/Gallery