Dong Si Cheng (董思成), better known by his stage name WINWIN (윈윈), is a Chinese singer and dancer. He is a member of the boy group NCT. The huge group contains of 3 units, known as NCT 127, NCT DREAM, and WayV.
He was born on October 28, 1997, in Zhejiang, China.
In January 2016, he was introduced as part of SM's pre-debut training team SMROOKIES. Before his debut, he was featured in the music video of NCT U's "WITHOUT YOU". In July, WINWIN officially debuted as a member of NCT, in the unit NCT 127, with the mini album NCT #127.
In January 2019, he debuted in a Chinese unit WayV with the EP The Vision.
WayV
NCT