Qixia discussed the risks of handling corpses with Teacher Zuo, who revealed that he teaches at a school for migrant workers and uses Sinan's father's bank card to receive his salary. For six years, Teacher Zuo has been unable to find evidence of Yan Ping and the principal breaking the law. Qixia proposed a new idea to break the silence.

Chapter 11: The Third Person

Yan Ping felt depressed about the murder case six years ago, and although it was not exposed at that time, he has been living in fear. He runs a restaurant poorly and his business is average. Recently, he received a mysterious note reminding him of an event six years ago, which made him extremely uneasy. Yan Ping encountered a quarrel on the street and felt watched, but no one was following him. He was startled by the sudden appearance of a round faced girl who left with a sweet orange scent of shampoo. Yan Ping was feeling restless while playing mahjong at a friend's house and hurriedly left after losing money. When purchasing ingredients, he noticed two men wearing hats and suspected that they were related to the notes, but later thought it was just his own overthinking. After returning home, Yan Ping received a second note directing him to check an email containing a video. The video shows the scene of Yan Ping killing Teacher Zuo and burying his body six years ago, which made Yan Ping extremely frightened. He recalled the conflict with Teacher Zuo back then and how he destroyed the body and wiped out the trace. Yan Ping suspected that his brother-in-law might be involved in this matter, so he contacted him to obtain information about someone and immediately booked tickets to prepare for action.