| idol_id | 1485 |
| Selca owner | lapillus_seowon |
| Pop type | K-pop |
| Stage name (romanized) | Seowon |
| Stage name (original) | 서원 |
| Real name (romanized) | Jang Seowon |
| Real name (original) | 장서원 (張瑞員) |
| Birth date | 2006-12-05 (age 19) ▲ ▼ |
| Chinese zodiac sign | 🐕 Dog |
| Western zodiac sign | ♐ Sagittarius |
| Hometown | Gwangju |
| Height | 170.0cm (5'7") ▲ ▼ |
| Weight | 49.0kg (108lb) ▲ ▼ |
| Blood type | |
| MBTI | ISFP |
| Debut date | 2022-06-20 (4 years and 3 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
Lapillus (라필루스) | MLD Entertainment | 2022-06-20 | 2025-04 | Group disbanded |