| Full Name | Jeong Hae-rin |
| Stage Name | SeoAh |
| Native Name | ì •í•´ë¦° |
| Birthday | June 11, 2010 |
| Age | 15 years old |
| Zodiac Sign | Gemini |
| Birthplace | Ochi-dong, Buk-gu, Gwangju, South Korea |
| Height | 5’2″ (158 cm) |
| Weight | – |
| Blood Type | – |
| MBTI | ENTP |
| Education | Gwangnam Middle School |
| Languages | Korean, English, Japanese |
| Group | TripleS |
| Social Media | – |