Episode 5 recap: Guan Yu and his team went to Yang Si's hometown to investigate.

Back in the day, Yang Si came to work at the construction site. The person in charge asked them to hand over their ID cards. There was someone nearby who offered Yang Si a drink and told him to warm up first. Both of them had the surname Yang, so they started talking. Meanwhile, someone on this side tried to escape but got beaten by the foreman. When the others who came with him realized it was an illegal worksite, they all ran away.

Guan Yu had someone check for gunshot residue, and now his suspicions have been confirmed. Based on the gunshot residue, it is confirmed that Yang Si was not the one who fired the gun. Chen Xiaoming is the most likely person. Guan Yu and his team returned to the crime scene to find out what really happened. Guan Yu had Zhou Qi conduct an experiment because they were both familiar with the situation. When she held the gun, the other person didn't think she would shoot, so they didn't try to dodge. There were no signs of evasion on Yan Hong Qiao's body either.

What is still unclear is why Chen Xiaoming jumped off the building after firing the gun. Some people think he might have committed suicide out of fear. It is now certain that Yan Hong Qiao's gun was taken, but it cannot be confirmed if the murderer used that gun. It's highly possible that the murderer brought their own gun and took Yan Hong Qiao's gun after committing the crime.

Yan Hong Qiao's gun was locked in a drawer, and the key is currently with the criminal investigation team. If Chen Xiaoming took the key to make a copy, there would be traces on the original key, which can be checked. Zhong Yi posted online, intending to find Chen Xuesong. They also discovered a comment about a water ghost online, claiming that someone saw a water ghost when they fell into Lan River.

When Guan Yu arrived and saw that it was related to the Water Resources Bureau, he called Old Zhao from the bureau and learned that he was in the hospital. Guan Yu went there with his team to visit him. Old Zhao confirmed that he had a close call that day and saw a small ghost when he fell. It was over a meter tall, so it couldn't be a fish. Guan Yu asked Zhong Yi to investigate if it's related to the case. Old Zhao's wife urged Guan Yu to go to the south and bring her back. After all, a couple should be together like fallen leaves returning to their roots.

Guan Yu remembered receiving a fraudulent phone call claiming that his wife had died. The county chief called the bureau chief, urging them to quickly solve the case. Guan Yu mentioned this to the bureau chief and expressed his intention to investigate in Yang Si's hometown. The bureau chief reminded Guan Yu that they only had two days left.

Guan Yu and his team arrived at Yang Si's hometown, where Yang Si's mother mentioned that he hadn't been back for a long time. Guan Yu wanted to know if there were any photos of Yang Si available. Yang Si's mother asked them to search the cabinet and said that if there were any, the tallest person in the photos would be Yang Si.

After comparing the photos, Guan Yu found that the two individuals were not the same person. He requested the local police to investigate who took Yang Si away for work and the people involved in the process. Ma Xiao Jing asked Wang Shan if he had been to the police station, and Wang Shan confirmed that he had gone.

Ma Xiao Jing warned him not to speak out randomly because if he had already been to the police station, why would they continue calling him. Wang Shan became upset upon hearing this and accused Ma Xiao Jing of wanting him dead. Feng Gen approached Ma Xiao Jing, and they discussed the situation with Wang Shan. They felt that if he went to the police station and made false statements, they would have to take some action. Coincidentally, Wang Shan overheard their conversation from outside.

News arrived that Lanhe County would be reclassified as a district, and Guan Yu and his team saw the notification. Zhong Yi received a phone call from his mother, promising to return and celebrate her birthday in two days.