UNI (유앤아이) was a pre-debut four-member girl group under TNK Entertainment. They were last active as a group in August 2018, but an official confirmation of the group's disbandment wasn't given until March 2019.
Loha and Siyeon left before the group disbanded. All of the pictures that included them were deleted and they were last tagged in the group's account in June 2018.
- Siwon was a contestant on the first season of Produce 101
- Both Siwon and Kyoyeon debuted solo in April 2019
- Siyeon and Kyoyeon went by the stage names Cindy and Sky for a while but returned to their birth names