2014: KARA Project
From May to July, Yuji was a contesant on KARA Project, her final rank was #7, thus not debuting in KARA.
2017–present: Apple.B, The Unit, 3YE
In 2017, she debuted as a member of Apple.B with the group's first digital single "Woochuchu". She presumably was a member of the group until their disbandment in 2018.
She was a contestant on the survival The Unit, where she was eliminated in episode 7, ending in 59th place.
In 2019, Yuji was introduced as a member of the three-member girl group 3YE.