| Full Name | Cho Ha-Seul |
| Stage Name | HaSeul |
| Native Name | 조하슬 |
| Birthday | August 18, 1997 |
| Age | 27 years and 10 months old |
| Zodiac Sign | Leo |
| Birthplace | Suncheon, South Jeolla Province, South Korea |
| Height | 5’2″ (158 cm) |
| Weight | – |
| Blood Type | 0 |
| MBTI | INFJ |
| Education | Bucheon Sangwon High School |
| Languages | Korean, English |
| Group | ARTMS LOONA |
| Social Media | Instagram: [@withaseul] |