She was a pre-debut member of VIVIDIVA under the stage name N.Na.
Soojin was originally supposed to be a member of girl group VIVIDIVA under the stage name N.Na, but withdrew from the group before it debuted.
Three years later, on April 10, 2018, she was revealed as a member of (G)I-DLE. She, along with the rest of the group, debuted on May 2, 2018, following the release of the group's first mini album, I Am.
- Soojin really likes to dance. She began learning jazz dance at a young age and so thought of becoming a singer. She attended a dance academy which helped her grow her dream and later even enrolled in a vocal academy to learn how to sing.
- Soojin was the 'fox girl' in Soyeon's Jelly and Idle Song music videos.
- Soojin was a part of the performance unit Six Puzzle in Queendom, along with Moon Byul, YooA, Jeong Ye In, Chanmi, and Eunji.