Although Liu Beishan did not kill Wei Lai, the crime of harboring and his previous petty theft also made Liu Beishan sentenced. The movie didn't say that Liu Beishan was sentenced to several years, but the first scene of the movie was that Liu Beishan went to the prison to meet Chen Nian, which means that he didn't get as much punishment as Chen Nian. Chen Nian was sentenced to four years in prison for manslaughter and school violence. Liu Beishan should be released in less than four years. Although both of them have been in prison, this is not a stain on their lives, but a process of transformation.

Chen Nian killed her classmate by mistake. Chen Nian is a very ordinary girl, but she has a dream in her heart. She hopes to get into an ideal university through the college entrance examination and stay away from this town. Although her academic performance has always been among the best, she is not sociable and doesn't want to be influenced by others' attention. She just wants to get into a good university in Beijing.

And Xiaobei is really a punk, who is not fighting all day, or on the way to fighting. Because of the influence of parents since childhood, Xiaobei's rebellious period is very strong. When Xiaobei was attacked by gangsters, because of Chen Nian's interference, he met Xiaobei by chance and knew Xiaobei was a gangster. Because Chen Nian wanted to pass the college entrance examination well, she asked Xiaobei to protect herself.

Every day, on Chen Nian's way to and from school, Xiao Bei will silently follow behind to protect Chen Nian, which makes all the people who bully Chen Nian leave. But by chance, Xiaobei was taken to investigate by the police, and Chen Nian was bullied by gangsters. When Xiaobei knew about it, Chen Nian struggled to stop it. Later, when Chen Nian's classmate apologized to her, she accidentally pushed her classmate, causing accidental casualties.

Xiaobei was sentenced to four years, and finally Xiaobei took it. Chen Nian and Xiao Bei tried to let go, but they were outwitted by the police. Finally, Chen Nian was sentenced to four years, and finally Chen Nian came out. She also guides other children in the sun. As the camera moved slowly, Liu Beishan cut a new hairstyle, put on clean clothes and followed Chen Nian with a smile. Different from before, this time he is also basking in the sun. Two souls struggling in the mire were born in the sun.

Conclusion: The end of the film is talked about by many people. When Chen Nian became an English teacher, she found a girl in her class who was also suspected to be troubled by school bullying. Chen Nian thinks of herself and resolutely protects the girl from going home. On the way, Xiaobei appeared happily behind them, saw the video surveillance and even slowed down the camera and glanced at the surveillance camera.

Xiao Bei appeared in the surveillance, which means that Chen Nian certainly didn't imagine it. Combined with the plot, Xiao Bei's crime is very light, even if it exists. After Chen Nian came out, she took the initiative to choose to continue to guard and guard the girl at the same time. In other words, it is equivalent to pushing the meaning of guarding wider.

It is worth mentioning that when Xiaobei sent Chen Nian home for the first time, he covered his face with a hat when he saw the surveillance. This time, Xiaobei also watched the surveillance camera, indicating that Xiaobei can guard Chen Nian without scruple, and Chen Nian took the girl away, indicating that she fully knew. At this time, Chen Nian is an adult, happily enjoying the guardian moment, which makes people believe that there will be love between the two.