| Birth Name | Lee Hyein (이혜인) |
| Stage Name | Hyein (혜인) |
| Birthday | April 21, 2008 |
| Nationality | Korean |
| Height | 170 cm |
| Blood Type | O |
| MBTI | ISFP (previous results were INFP, ENFP) |
| Group | NewJeans |
| Company | ADOR |
| Position | Maknae |
| English Name | Grace Lee |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Rat |
| Representative Emoji | 🐹 / 🐣 |