| Full Name | Park Ja Young |
| Stage Name | Jayoung |
| Native Name | 박자영 |
| Birthday | October 27, 1996 |
| Age | 28 years and 10 months old |
| Zodiac Sign | Scorpio |
| Birthplace | South Korea |
| Height | – |
| Weight | – |
| Blood Type | B |
| MBTI | ENFJ |
| Education | Kyung Hee University |
| Languages | Korean, English |
| Group | Rolling Quartz (2019-present) |
| Social Media | Instagram: [@jayoung__v] Twitter (X): [@jayoungRQ] |