| Full Name | Zhou Xinyu |
| Stage Name | Xinyu |
| Native Name | 周心语 |
| Birthday | May 25, 2002 |
| Age | 23 years old |
| Zodiac Sign | Gemini |
| Birthplace | Haidian District, Beijing, China |
| Height | 5’9″ (174 cm) |
| Weight | 108 lbs (49 kg) |
| Blood Type | – |
| MBTI | ENTP |
| Education | Berklee College of Music |
| Languages | Chinese, Korean, English, Japanese |
| Group | tripleS |
| Social Media | Instagram: [@z.xixyu_5] |