| Birth Name | Dong Si Cheng (董思成) |
| Stage Name | Winwin (윈윈) |
| Birthday | October 28, 1997 |
| Height | 179 cm |
| Weight | 60 kg |
| Blood Type | B |
| MBTI | INFJ-A |
| Group | NCT |
| Company | SM Entertainment |
| Position | Dancer, Vocalist, Rapper, Visual * |
| Korean Name | Dong Sa Sung (동사성) |
| Zodiac Sign | Scorpio |
| Representative Emoji | 🐥 |