Soojin (수진) is a South Korean singer currently under Cube Entertainment. She is a member of the girl group (G)I-DLE.
She was a former 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, she was then revealed as an upcoming member of (G)I-DLE on April 10, 2018 and debuted as a member on May 2, 2018, following the release of the group’s first mini album, I Am.
Source: kpop wiki