Hong Liang found out that Qiao Zhenxing called Yang Jing many times before his death, so he asked Qin Feng to take him to see Yang Jing. Yang Jing led Qin Feng away, and she and Hong Liang had a talk alone.Hong Liang asked him about Qiao Zhenxing's situation. Yang Jing was very alert. Hong Liang had to admit that he was Qiao Zhenxing's good friend. Qiao Zhenxing died inexplicably. He wanted to find out the real cause of Qiao Zhenxing's death and help Qiao Zhenxing fulfill his last wish.

Yang Jing took Hong Liang to his parents' spirit and told him about what happened thirteen years ago.Her father Yang Zheng is the accountant of Wanchuan Mining in Wanhai. Two people came to rob him in masks. Yang Zheng was unfortunately beaten to death by a jumper. Afterwards, Qiao Zhenxing came to lit an incense stick for Yang Zheng and admitted that he had handled the wrong case. The real main culprit was not Sun Yihu. Before leaving, Qiao Zhenxing reminded Yang Jing not to tell anyone about this.

After careful investigation and possession of some evidence, Li Renjun decided to appeal Wan Hai's case and let Xie Hongfei retrieve Wang Yu's call record. Xie Hongfei was immediately stunned, but he did not dare to disobey Li Renjun's order, so he had to follow suit.Liu Yun took Chen Shenglong, Cheng Zijian and others to Wanchuan Mine for inspection, and Wan Hong took them to visit.

Hong Liang went to the procuratorate to retrieve files from the January 31 shooting case thirteen years ago. Lan Jingming sent Xie Hongfei, Li Renjun and Qiao Zhenxing to be responsible for the case.Yang Zheng worked overtime to pay the miners. Two masked gangsters rushed into the finance office with guns and robbed Yang Zheng and two other colleagues. The public security organs found that the murderers were Sun Yihu and Yang Dayou. Sun Yihu admitted that he was the murderer and was finally sentenced to death.

Wan Hong proposed to inject capital into Tianlong Group, and Wanchuan Mining held a controlling stake. Chen Shenglong insisted on a full acquisition of Wanchuan Mining, and Wan Hong was in a dilemma.Wanchao shouted downstairs with fireworks in his hand. Seeing this, Liu Yun had to leave with Chen Shenglong and others. Wan Hong comforted Wanchao, then caught up with Liu Yun and asked Liu Yun to talk to him next time.

Hong Liang read the file of the 1.31 case from beginning to end. He came to Gong Xiaozhi again and told him in person that Gong Xiaozhi was Sun Yihu's son. Qiao Zhenxing kept giving him money to atone for his sins and explained that Sun Yihu was not the main culprit. Gong Xiaozhi brought Hong Liang to find his mother Wang Li. Wang Li was very excited when she saw Gong Xiaozhi, so she told him everything about that year.

Thirteen years ago, because of poor unit benefits, Sun Yihu worked odd jobs outside, and Yang Dayou often came to Sun Yihu to drink. Sun Yihu wanted to make a fortune with Yang Dayou.Yang Dayou took Sun Yihu to rob and kill people. A few days later, Sun Yihu went home with a sum of money. He wanted to take the blame for Yang Dayou. Wang Li took the money to do business in the south, but he lost all his money. Gong Xiaozhi didn't recognize her. Wang Li was very sad and begged Gong Xiaozhi to stay for dinner.

Hong Liang remembered that Yang Jing once said that Ma Chongyang came to his home to worship his father Yang Zheng. He called Ma Chongyang overnight. Ma Chongyang learned that the report letter and the cause of Qiao Zhenxing's death had not been found out yet, so he hung up the phone in anger. Hong Liang called Ma Chongyang again to learn about the old case thirteen years ago.Ma Chongyang left the public security system because of this case. He and Qin Feng appeared on the scene and asked Hong Liang to find Qin Feng to learn about the case.

Hong Liang made an appointment with Qin Feng and was curious about the progress of his relationship with Yang Jing. Qin Feng admitted that he liked Yang Jing, but Yang Jing was close to him. Hong Liang had to say that the victim of the 1.31 case that Qin Feng was responsible for was Yang Jing's father Yang Zheng. Qin Feng was stunned.Hong Liang called Qin Feng aside and told him the whole story.After Sun Yihu was sentenced to death, Qiao Zhenxing felt that he had been wrong, so he investigated the case again. He found Yang Zheng's daughter Yang Jing, Sun Yihu's wife Wang Li and son Gong Xiaozhi. Qiao Zhenxing finally found out that Sun Yihu did not shoot, and Wang Dayou was the murderer.

Qin Feng remembers that after the incident, he and Ma Chongyang came to Wanchuan Mining Finance Office as soon as possible. Yang Zheng still had a breath. He said that the robbers were two people. The tall Wang Dayou shot and killed someone. Later, Yang Zheng was sent to the hospital and died due to ineffective treatment. Hong Liang asked Qin Feng if he had any doubts about the case. Qin Feng was speechless when asked.

Ma Chongyang arrived in time, and he scoffed at Qin Feng. Both Qin Feng and Ma Chongyang heard Yang Zheng telling Wang Dayou about shooting, but Sun Fei, the captain of the branch investigation detachment, decided to be the main culprit for the short Sun Yihu, and Ma Chongyang quarreled with Qin Feng for this.Qin Feng clearly remembered that he went to Xu Yanwu to report the matter. Xu Yanwu immediately called Sun Fei, and Sun Fei agreed to go to the hospital for verification.