Eunseo
| Stage Name | Eunseo |
| Full Name | Son Ju Yeon |
| Country of Birth | Korea |
| Date of Birth | May 27, 1998 |
| Age | 25 years old |
| Height | 1.68 m (5'6") |
| Weight | 46 kg (101 lbs) |
| Blood Type | B |
Not Ranked
| Stage Name | Eunseo |
| Full Name | Son Ju Yeon |
| Country of Birth | Korea |
| Date of Birth | May 27, 1998 |
| Age | 25 years old |
| Height | 1.68 m (5'6") |
| Weight | 46 kg (101 lbs) |
| Blood Type | B |
Not Ranked