Sun is a good man. If you want to know whether the character in a TV series is decent or villain, you should judge it according to the plot. In the TV series "Sweeping the Black Storm", many of Sun's actions look like bad people, but we will find that the role of Li Chengyang played by Sun in this TV series is actually a good person.

Reading between the lines, we can see that Sun is actually a real policeman. Since he still has such an ideal, it shows that his three views are still positive. Although Sun didn't look very good at the beginning of the play, he had an honest three views. In the later development of the plot, Li Chengyang, played by Sun, had a lot of room for whitewashing.

And from the plot, we can know that Li Chengyang's biggest heart is to find out the truth about the master's death, so we can guess that the project before 14 was actually led by Gao Mingyuan, and Ma Shuai just worked for Gao Mingyuan. Later, Ma Shuai never told Li Chengyang about it, for fear that his brother could not do it. On the other hand, Ma Shuai was just an ordinary punk at first, and then he got the help of Gao Mingyuan. Gao Mingyuan knew what Ma Shuai meant by breaking his little finger, so he sent someone to solve Ma Shuai.

Judging from the plot of this drama, Li Chengyang, played by Sun, used to be a policeman, but he was framed because he accidentally violated the interests of those villains when working with the master 14 years ago, and finally abandoned the police and went to sea. He knew there might be a mole around him, so he didn't trust anyone. He helped Ma Shuai because Ma Shuai saved his life. So judging from these signs, Li Chengyang played by Sun is definitely a good man, but he has to act like a villain to hide his identity.