Infernal Affairs: Why should silly strong protect Chen Yongren?

Because silly strong really took Chen Yongren as his brother. Silly strong is not stupid. On the contrary, he sometimes becomes smart. Silly strong later became Chen Han's right-hand man. He and Chen Yongren knew each other when they were in prison, so he would remind Chen Yongren before he died.

So silly strong actually knows everything in it. It was because he knew that Chen Yongren was undercover that he would remind him of something. If he is really stupid, he won't think of that floor, so he really wants to help Chen Yongren. In fact, he is not stupid at heart, but attaches great importance to friendship, especially to Chen Yongren.

The main plot of Infernal Affairs

Infernal Affairs is a gangster film produced by Universal Asia Film Distribution Company in 2002, directed by Liu Weiqiang and Siu Fai Mak and starring Andy Lau, Tony Leung Chiu Wai and Ceng Zhiwei.

The film tells the story of two men with confused identities, a policeman and an undercover gangster. After fierce struggle, they are determined to find their own story. In 2003, the film won the Best Film Award in the 22nd Hong Kong Film Awards and the Best Film Award in the 40th Taiwan Film Golden Horse Awards, and Tony Leung Chiu Wai won the Best Actor Award in the 22nd Hong Kong Film Awards.