Y
| Stage Name | Y |
| Full Name | Choi Seong Yoon |
| Country of Birth | Korea |
| Date of Birth | Jul 31, 1995 |
| Age | 28 years old |
| Height | 1.77 m (5'10") |
| Weight | N/A |
| Blood Type | O |
Not Ranked
| Stage Name | Y |
| Full Name | Choi Seong Yoon |
| Country of Birth | Korea |
| Date of Birth | Jul 31, 1995 |
| Age | 28 years old |
| Height | 1.77 m (5'10") |
| Weight | N/A |
| Blood Type | O |
Not Ranked