Biography
Winwin
윈윈 / Dong Sicheng
Formerly of WayV
Winwin (Dong Sicheng) is a Chinese singer, dancer, rapper, and actor best known as a founding member of WayV, the China-based sub-unit of SM Entertainment's NCT. Born in Wenzhou in 1997, he debuted with NCT 127 in July 2016 and served as WayV's lead dancer, lead rapper, sub-vocalist, and visual from the group's debut on January 17, 2019, drawing on a background in traditional Chinese dance. From 2021 he stepped back from group activities to focus on acting in China. On July 8, 2026, SM Entertainment announced that his exclusive contract had concluded and that he would leave NCT and WayV as of July 9, 2026, continuing his music and acting career in China.
- Singer
- Dancer
- Rapper
- Actor
Facts
- Winwin, whose birth name is Dong Sicheng (董思成), was born on October 28, 1997, in Wenzhou, Zhejiang Province, China. Kprofiles
- He debuted on July 7, 2016, as a member of NCT 127 with the mini-album NCT #127, and later became a founding member of WayV, which debuted on January 17, 2019. Wikipedia (EN)
- In WayV, Winwin was the lead dancer, lead rapper, sub-vocalist, and visual, and was noted for his traditional Chinese dance background. Kpop Singers
- He also took part in the rotational sub-unit NCT U, appearing in the 2018 single 'Boss'. Wikipedia (EN)
- Winwin entered SM Entertainment in July 2015 (alongside Kun and Renjun) and studied at the Central Academy of Drama. Kprofiles
- On July 8, 2026, SM Entertainment announced that Winwin's exclusive contract had concluded and that he would leave NCT and WayV as of July 9, 2026, after more than 10 years with the company; he continues acting and music activities in China. Forbes
FAQ
What is Winwin's real name?
His birth name is Dong Sicheng (董思成). 'Winwin' is his stage name.
What was Winwin's position in WayV?
He was WayV's lead dancer, lead rapper, sub-vocalist, and visual, and was known for his traditional Chinese dance skills.
Is Winwin still a member of WayV and NCT?
No. SM Entertainment announced on July 8, 2026 that his contract had concluded, and he left NCT and WayV as of July 9, 2026.
When did Winwin debut?
He debuted on July 7, 2016 with NCT 127, and WayV debuted on January 17, 2019.
What is Winwin doing after leaving SM Entertainment?
He continues his career as an actor and musician in China, having been based there and focused on acting since around 2021.