Yu Wenwen was 28 in The Ex-File 3: The Return of the Exes when she played the character 'Lin Jia'.
That was over 6 years ago in 2017.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 35, and has starred in 5 movies in total, 4 of those since The Ex-File 3: The Return of the Exes was released.
In The Ex-File 3: The Return of the Exes, I think Yu Wenwen looks: