• Full name: Dŏng Sīchéng
  • Date of Birth: October 28, 1997
  • Nationality: Chinese(China)
  • Blood type: B
  • Group: NCT, NCT U, NCT 127, WayV
  • Agency: SM Entertainment
  • Debut: 2016
  • Position in the group: main dancer, lead rapper, sub vocalist
  • Family members: Mom, dad, older sister, Winwin
  • Nickname: ‘bbi-yag-i; which means chick’, ‘shaohua’,’SM innocence’ and ‘wingwing’
  • Winwin sleeps with his eyes opened
  • He wears glasses off stage
  • His sister was born and raised in New Zealand so they don’t get to see each other often. Winwin misses his sister a lot