- Full name: Seo Soojin
- Date of Birth: March 9, 1998
- Nationality: Korean
- Blood type: O
- Group: (G)I-dle
- Agency: Cube Entertainment
- Debut: May 2018
- Position in the group: Main dancer, sub vocalist
- Family members: Mom, dad, younger sister, Soojin
- Nickname: ‘cherry’,’soosoo’, and ‘cherrynyang’
- She likes to cook and cooks the most among other members
