| Full Name | Park Jiwon |
| Stage Name | E:U |
| Native Name | 박지원 |
| Birthday | May 19, 1998 |
| Age | 27 years old |
| Zodiac Sign | Taurus |
| Birthplace | Hanam, Gyeonggi-do, South Korea |
| Height | 5’4″ (161 cm) |
| Weight | 94.8 lbs (43 kg) |
| Blood Type | 0 |
| MBTI | ENFP |
| Education | – |
| Languages | Korean, English |
| Group | EVERGLOW |
| Social Media | Instagram: [@reason._.is_eu] |