| Full Name | Kim Chae-hyun |
| Stage Name | Chaehyun |
| Native Name | 김채현 |
| Birthday | April 26, 2002 |
| Age | 23 years and 1 month old |
| Zodiac Sign | Taurus |
| Birthplace | Yeonje-gu, Busan, South Korea |
| Height | 5’4″ (162 cm) |
| Weight | 94.8 lbs (43 kg) |
| Blood Type | B |
| MBTI | ESFP/ESTP |
| Education | – |
| Languages | Korean, Japanese, English |
| Group | Kep1er |
| Social Media | Instagram: [@iioflhyun] |