| Full Name | Kaylee Grace Lee |
| Stage Name | Kaylee |
| Native Name | 이서희 |
| Birthday | November 24, 2009 |
| Age | 15 years and 8 months old |
| Zodiac Sign | Sagittarius |
| Birthplace | Philadelphia, Pennsylvania, United States |
| Height | 5’3″ (160 cm) |
| Weight | – |
| Blood Type | – |
| MBTI | ISTJ |
| Education | – |
| Languages | English, Korean |
| Group | VCHA (2023 – July 11, 2025) |
| Social Media | Instagram: [@kayleegracelee] TikTok: [@kayleegracelee] |