In high school in 2005, Won Jong-soo originally wanted to ask Park Joon-seo to teach Chae Kyung-tae a lesson because Zheng Shangyi said that Cai Kyung-tae had robbed him of his money (Zheng Shangyi’s face was covered in blood at the time and it looked like he had been beaten), so Yuan Jong-sooZongzhu took his friends to teach Cai Jingtai a lesson.

On the night of February 23, when Zheng Shangyi arrived, Park Tae Jin had already arrived and asked Zheng Shangyi to turn on the lights at the construction site. Later, Won Jong-soo and Oh Chi-hyun also arrived. Everyone saw that everything upstairs was turned on, so they took the public elevator.When passing by the fourth floor, Park Tae-jin and Won Jong-soo saw Park Joon-seo falling. Then they did not go to the ninth floor, but went directly downstairs to check and found that it was indeed Park Joon-seo.Park Tae Jin went to check his pulse and asked everyone to leave the scene quickly, and then everyone went home.

Zhang Zaijing felt that Zheng Shangyi's testimony was illogical. After all, how could a person who said he wanted to restore everything to its original state suddenly end it?In short, Zhang Zaijing believed that someone among the people who appeared at the construction site must be the murderer.Li Mingguo is Zheng Shangyi's boss, but if Li Guo doesn't say anything, Zheng Shangyi actually doesn't know what happened to Li Mingguo or whether he was threatened. But for Park Zhunrui, he can be sure that it was not suicide, because what he sawPark Zhunrui was wearing shoes, which was inconsistent with the shoes found at the murder scene.So Zhang Jae-kyung immediately went to Oh Chi-hyun to confirm his testimony. He also said that Park Tae-jin went to confirm Park Joon-seo's pulse, but Oh Chi-hyun did not pay attention to whether Park Joon-seo was wearing shoes at the time.

On the other side, Yuan Zongzhu has been waiting for Mayor Zhu but couldn't wait and was angry. What's worse is that his cooperation talks with Mayor Zhu did not go well because the funds and surplus of Jinjiong Pharmaceutical declined year by year, leaving Mayor ZhuI feel uneasy about approving the development project, especially now that banks are almost afraid to lend money to Jinjiong Group.Wu Yunzhen found it too strange. Park Zhunrui was not from Jinjiong Pharmaceutical Company, but it was strange that he had a business card and even tried his best to help the pharmaceutical company connect with the hospital.Zhang Zaijing finally found clues about the taxi that killed the rice cake shop owner by tracing the surveillance footage, and also looked for possible places nearby where he could wipe away the blood.Subsequently, Zhang went to see Min Hyun-woo in Beijing and learned that he knew Oh Chi-hyun. Through the phone number and information provided by Min Hyun-woo, he finally understood that Min Hyun-woo was only temporarily called by Park Joon-seo to deliver goods that day (because Park Joon-seo's daughter suddenly became very unhappy).Comfortable).

Later, the wrong medicine delivery incident caused the death of Park Fuli. Park Zhunrui lost his temper with Min Xianyu and asked Min Xianyu to forgive him, and began to take care of him and his grandma.Subsequently, Zhang Zaijing asked Wu Yunzhen to go to Shudong Hospital and pretend to be a poisonous insect to ask the doctor to prescribe some medicine that can relieve drug addiction. Then the two went to the British Freezing Company to look for clues. Although no definite evidence was found, they found that there was a rice cake shop nearby.area, and finally understood the driving direction of the car that was involved in the murder of the rice cake shop owner, and also knew which road the murderer took to avoid the surveillance footage, and finally captured the footage of the taxi and traced the owner.