Yoo Si Woo is the rapper and dancer of the boy group TRCNG under TS Entertainment. He can speak Russian.
The group debuted with the EP New Generation on October 10, 2017. Originally a ten-piece group, Wooyeop and Taeseon left the group in November 2019 and filed suit against TS Entertainment for violations of child welfare legislation, alleging abuse, assault, and extortion. They, in turn, were sued by the parents of the remaining members for spreading false information.
In January 2021, TS Entertainment, privately shut down and deleted its website, leaving the fate of the group unknown.
On March 28, 2022, TS Entertainment announced that TRCNG’s contract has ended, and the group has officially disbanded.