- Stage Name: Sumin (수민)
- Birth Name: Bae Sumin (배수민)
- Birthdate: March 13, 2001
- Blood Type: O
- Height: 158cm
- Hobbies: Eating corn, Watching Webtoon
- Specialties: Making seaweed soup, eyebrow wave
- STAYC (2020–)
-  Nawa Ilgob Namjadeului Iyagi Me & 7 Men (나와 일곱 남자들의 이야기) (as "the invisible girl")
- She was originally going to be a contestant on Produce 48.
- She auditioned for K-POP STAR.
- She is former trainee under Play M Entertainment.