| Full Name | Jang Ye-eun |
| Stage Name | Yeeun |
| Native Name | 장예은 |
| Birthday | August 10, 1998 |
| Age | 26 years and 10 months old |
| Zodiac Sign | Leo |
| Birthplace | Dongducheon, Gyeonggi, South Korea |
| Height | 5’6″ (166 cm) |
| Weight | 108 lbs (49 kg) |
| Blood Type | B |
| MBTI | INFJ |
| Education | Seoul Performing Arts High School |
| Languages | Korean, English, Chinese, Japanese |
| Groups | CLC (2015-2023, 2025-present) EL7Z UP (2023-2024) |
| Social Media | Instagram: [@yyyyeeun] YouTube: [@_happyending] TikTok: [@yeeun810] |