Keumjo

Following the graduations of Lee Sem, Eunji, and Sera in 2014, Keumjo was revealed as the newest 9MUSES member, alongside Sojin. She made her official debut as a member on January 23, 2015 with the group's third mini album Drama. On August 4, 2016, she debuted as a member of the group's first sub unit 9MUSES A with the single album "Muses Diary".

On February 11, 2019, Star Empire Entertainment announced that 9MUSES would disband after nine years. The group officially disbanded on February 24 following a fan meeting and the release of the digital single "Remember". On February 12, 2020, she made her solo debut with the single "Fingertips".