| idol_id | 1535 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Seoyeon |
| Stage name (original) | 윤서연 |
| Real name (romanized) | Yoon Seoyeon |
| Real name (original) | 윤서연 (尹舒姸) |
| Birth date | 2003-08-06 (age 20) ▲ ▼ |
| Chinese zodiac sign | 🐑 Goat |
| Western zodiac sign | ♌ Leo |
| Hometown | Daejeon |
| Height | 160.0cm (5'3") ▲ ▼ |
| Weight | |
| Blood type | B |
| Debut date | 2023-02-13 (1 year and 2 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|
|
(트리플에스)
|
Modhaus | 2023-02-13 | Yes |
| Name | Debut date | |
|---|---|---|
|
(러블루션)
|
2023-08-17 |
|
(크리스탈 아이즈)
|
2023-05-04 |