| idol_id | 1544 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Dahyun |
| Stage name (original) | 서다현 |
| Real name (romanized) | Seo Dahyun |
| Real name (original) | 서다현 (徐多賢) |
| Birth date | 2003-01-08 (age 21) ▲ ▼ |
| Chinese zodiac sign | 🐎 Horse |
| Western zodiac sign | ♑ Capricorn |
| Hometown | Busan |
| Height | 160.1cm (5'3") ▲ ▼ |
| Weight | |
| Blood type | A |
| MBTI | ISFP |
| Color | Lavender Rose |
| Debut date | 2023-02-13 (1 year and 9 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
tripleS (트리플에스) | Modhaus | 2023-02-13 | Yes |
| Name | Debut date | |
|---|---|---|
|
Aria (아리아) | 2024-01-15 |
|
LOVElution (러블루션) | 2023-08-17 |