| Full Name | Moon Su-a |
| Stage Name | Moon Sua |
| Native Name | 문수아 |
| Birthday | September 9, 1999 |
| Age | 25 years and 10 months old |
| Zodiac Sign | Virgo |
| Birthplace | Cheongju, Chungcheongbuk-do, South Korea |
| Height | 5’5″ (164 cm) |
| Weight | 99.2 lbs (45 kg) |
| Blood Type | B |
| MBTI | ISFP |
| Education | Shinbong High School |
| Languages | Korean, English, Japanese |
| Groups | Billlie (2021-present) Moon Sua X Siyoon (2025-present) |
| Social Media | Instagram: [@a_us_noom] |