| Full Name | Lee Jae-hyun |
| Stage Name | Hyunjae |
| Native Name | 이재현 |
| Birthday | September 13, 1997 |
| Age | 27 years and 11 months old |
| Zodiac Sign | Virgo |
| Birthplace | Incheon, South Korea |
| Height | 5’11” (180 cm) |
| Weight | 136.7 lbs (62 kg) |
| Blood Type | B |
| MBTI | ENFJ-A |
| Education | Hanlim Art High School |
| Languages | Korean |
| Group | THE BOYZ |
| Social Media | Instagram: [@leejaehyunow] |