Chuu (Hangul: 츄)[3] is the tenth revealed member of LOONA and a member of its third sub-unit, LOONA / yyxy.

She was born as Kim Ji-woo (Hangul: 김지우) on October 20, 1999 in Chungju, North Chungcheong, South Korea.

She debuted on December 14, 2017 as a member and subsequently released her solo single album Chuu on December 28, 2017.


Early life

Chuu was born and raised in Chungju, Chungcheong Province, South Korea, with her parents and two younger brothers. She attended Saet-byul Elementary school and San-nam Middle school. Growing up, Chuu had always wanted to be a singer. She would often attend recitals of her mother, a classically trained vocalist.[4] However, because her mother was aware of the difficulties a singing career carried, she did not support Chuu. Despite that, Chuu continued to pursue her dream with the approval of her father.[5] In order to become a singer, Chuu applied and was accepted as a singer major at Hanlim Multi Arts High School in Seoul in 2015. Later, she became a trainee at FNC Academy in 2016.[6] Sometime after, she left FNC Academy and joined Music Works. It was also around this time that Chuu started her popular Instagram account. Wanting to further challenge herself, Chuu departed from Music Works to seek for a new agency. Although she auditioned for JYP Entertainment and YG Entertainment's "The Black Label", she was not accepted into either one.

On November 11, 2017, Chuu made her final post on Instagram before disappearing. Seemingly unrelated, a member of LOONA, named Yves, appeared in episode 230 of LOONA TV on December 6. A day later, the teaser for LOONA's 10th member was released. Not until days after the episode of LOONA TV, a fan of Chuu's noticed that Yves' phone had a sticker given to Chuu on her birthday two months before. As a result, many fans had predicted that the new member would be the well known 'Instagrammer' "Kim Ji Woo". These were later confirmed on December 13 when it was announced the new member was Chuu.[7]

On February 9, 2018 Chuu graduated from Hanlim Multi Arts School alongside Kim Lip.

2017: Reveal, Debut in LOONA

Chuu released her solo single album Chuu on December 28, 2017 and subsequently debuted as the 10th member of LOONA.

2018: yyxy

Chuu later debuted as a member of yyxy with members Yves, Go Won and Olivia Hye on May 30, 2018 with the mini-album beauty&thebeat.

2019: Dating Class

Chuu starred in the web drama Dating Class along with Gyuri of fromis_9 and Seoham from KNK. The airing started on May 10, 2019.

2020: Chuu Can Do It

On December 28, Chuu opened her YouTube channel with a teaser for the upcoming project Chuu Can Do It, a web series where Chuu would raise awareness about environmentally-friendly practices to help protect the Earth. The series began airing on Korean television on January 7, 2021, and a second season was announced at the end of the first season.


Single albums




Variety Shows

As Main Cast

Year Name Channel/Platform
2020 Running Girls Mnet
2020–2021 Chuu Can Do It DIA TV @ YouTube
2021 Hauteur YouTube

As Main Host

Year Name Channel/Platform
2021 Steel Troops YouTube

Web Drama

Year Name Channel/Platform Role
2019 Dating Class tvN D Han EunSol (main)

Music Video Appearances

As Cameo

Year Title Artist
2018 "One & Only" Go Won
"Egoist (feat. JinSoul)" Olivia Hye


Year Song Composer Arranger Lyrics Other
2022 "Lullaby"


  1. loonatheworld 211126 VLIVE. “I recently measured my height. I am 161.3!” @23:31. VLIVE. 2021.11.26
  2. Sometimes appears as “Hope (소망)” (eg. 2018 tweet). Her emotion is stated to be “Love (사랑)” in the “one” special video and LOONA’s 2019 10Star interview.
  3. /t͡ɕʰju/, CHOO
  4. 190401 ize Spotlight: LOONA’s Chuu
  5. 180910 SBS Love FM
  6. 16???? Chuu Navilerra Cover
  7. Chuu History Compilation by Casker
  8. 160601 어른이 되고 싶어
  9. https://twitter.com/he8jin/status/1367386780710895616