| Full Name | Jeong Se-hyeon |
| Stage Name | Saena |
| Native Name | ì •ì„¸í˜„ |
| Birthday | March 12, 2004 |
| Age | 21 years and 3 months old |
| Zodiac Sign | Pisces |
| Birthplace | U-dong, Haeundae-gu, Busan, South Korea |
| Height | 5’3″ (160 cm) |
| Weight | 88.2 lbs (40 kg) |
| Blood Type | B |
| MBTI | ISFJ |
| Education | Haeundae Tourism High School |
| Languages | Korean, English |
| Groups | Ablume (2024-present) FIFTY FIFTY (2022 – October 23, 2023) |
| Social Media | – |