Jiang Yuwen in Pi is played by actor Liu Kai. Liu Kai 1985 was born in Lanzhou, 1988, and graduated from the Drama Department of PLA Art College. Liu Kai was the man of the hour when he was a student. He has been an excellent student for four years in a row, and his academic performance is good.

Liu Kai is also a versatile man. He can play the piano and all kinds of ball games. Since her debut, Liu Kai has also appeared in many TV dramas, such as raiders of the lost ark, I Love Nanny, My 1997 and Brother Cop Pot.

In "School of Youth", Jiang Yuwen appeared in the second half of the plot. Jiang Yuwen's official position is Pei Yin, and they fell in love. Jiang Yuwen has always liked Pei Yin. After the divorce, Pei Yin bravely pursued Pei Yin and got the support of his son Qian Sanyi. Finally, Jiang Yuwen and Pei Yin got married and their lives were very happy.

Jiang Yuwen is a warm man in the play, and he is also very nice. It can be said that Jiang Yuwen is the ideal boyfriend candidate for many women. Jiang Yuwen had a good ending and finally joined hands with the person he liked for life.