| idol_id | 1349 |
| Selca owner | stayc_j |
| Pop type | K-pop |
| Stage name (romanized) | J |
| Stage name (original) | 재이 |
| Real name (romanized) | Jang Yeeun |
| Real name (original) | 장예은 (張叡恩) |
| Birth date | 2004-12-09 (age 20) ▲ ▼ |
| Chinese zodiac sign | 🐒 Monkey |
| Western zodiac sign | ♐ Sagittarius |
| Hometown | Daejeon |
| Height | 171.0cm (5'7") ▲ ▼ |
| Weight | |
| Blood type | O |
| MBTI | ISTJ |
| Debut date | 2020-11-12 (4 years and 9 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | Roles | |
|---|---|---|---|---|---|---|---|
|
STAYC (스테이씨) | High Up Entertainment | 2020-11-12 | Yes | Maknae |