- Stage Name: Haeri (해리)
- Birth Name: Jung Haeri (정해리)
- Nicknames: Haeri Potter, Reri, Riri, Witch, Hel, Egg
- Birthdate: January 14, 1997
- Birthplace: Seoul, South Korea
- Blood Type: O
- Height: 164cm
- Hobbies: Playing the guitar, shopping alone, composing, writing songs.
- Education: Chungdan High School
- Family: Yujin (Older Sister)
- P.O.P (2017–2018)
- Her favorite foods are seafood, chicken legs, and raw flounder.
- Her role model is Taeyeon.
- She has been a trainee for six years.
- She was a trainee under CUBE Entertainment and LOEN Entertainment before joining RBW Entertainment.
- She was trained to debut with CLC under CUBE.
- She is friends with Chahee of Melody Day and Jennie of BLACKPINK. They studied at the same school.
- She is also close with Amet of GP Basic, Dajeong of Hashtag and Eunji of GI.
- She took part in IDOLM@STER.KR.
- She can speak Japanese.