Dong Sheng recounts what happened before his in laws died. Chao Yang wants to report the crime, but his friends don't want to get involved with the police. The kids decide to write a warning letter to the murderer.

Dong Sheng discovers who gave him the warning letter. The kids blackmail Dong Sheng for money to save Pupu's brother, but the deal doesn't go smoothly. Yan Liang almost gets taken back to the welfare home.