| idol_id | 1513 |
| Selca owner | csr_seoyeon |
| Pop type | K-pop |
| Stage name (romanized) | Seoyeon |
| Stage name (original) | 서연 |
| Real name (romanized) | Ahn Seoyeon |
| Real name (original) | 안서연 (安胥姸) |
| Birth date | 2005-03-26 (age 19) ▲ ▼ |
| Chinese zodiac sign | 🐓 Rooster |
| Western zodiac sign | ♈ Aries |
| Hometown | Bucheon |
| Height | 161.0cm (5'3") ▲ ▼ |
| Weight | |
| Blood type | O |
| MBTI | ENFP |
| Debut date | 2022-07-27 (2 years and 3 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
CSR (첫사랑) | popmusic | 2022-07-27 | Yes |