| Full Name | Lee Chae-young |
| Stage Name | Isa |
| Native Name | 이채영 |
| Birthday | January 23, 2002 |
| Age | 23 years and 5 months old |
| Zodiac Sign | Aquarius |
| Birthplace | Millak-dong, Suyeong-gu, Busan, South Korea |
| Height | 5’6″ (166 cm) |
| Weight | 99.2 lbs (45 kg) |
| Blood Type | – |
| MBTI | ESFJ |
| Education | Gajaeul High School |
| Languages | Korean, English, Japanese |
| Group | STAYC (2020-present) |
| Social Media | Instagram: [@isamovingon] |