Zhou Qiao said that he helped a disabled person with limited mobility put the bag in the locker, and knew nothing else.Lei Xu led members of the nine departments to sort out the doubts: first, the bullying case happened to happen under the school surveillance camera; second, is there any connection between the 98,000 yuan in Jiang Xiaojie's bag and the 100,000 yuan that Zhang Yunyun is planning to have plastic surgery?Third, is the money in Jiang Xiaojie’s bag the same as that in the locker bag?Fourth, are the three children Jiang Xiaojie, Zhang Yunyun and Zhou Qiao related in other ways?Lei Xu and Du Ziyu led colleagues from nine departments to separately question Jiang Xiaojie and Zhang Yunyun. They learned that Jiang Xiaojie had misunderstood that Zhang Yunyun had spread about her taking emergency contraceptive pills, and beat Zhang Yunyun in anger. Zhang Yunyun's aunt took the video of Jiang Xiaojie bullying Zhang Yunyun.Li Xiaoyan asked Li Xiaoyan for compensation. Li Xiaoyan was worried about causing trouble at school, so she quietly compensated Aunt Zhang Yunyun 200,000 yuan.Li Xiaoyan was shocked when she saw Zhang Yunyun's aunt, saying that this aunt was not the aunt she had met before. After Lei Xu and Du Ziyu checked, they found that Zhang Yunyun had defrauded Li Xiaoyan of 200,000 yuan with a fake aunt.Everyone was shocked.Zhou Qiao learned that the fake aunt was exposed, and finally admitted that he had invaded the intranet of Linghua Middle School and stolen the video of Jiang Xiaojie bullying Zhang Yunyun.Zhou Qiao is Jiang Xiaojie's childhood friend, so why did she help Zhang Yunyun steal the bullying video?Lei Xu realized that Jiang Xiaojie and Zhang Yunyun had not told the truth. Members of the Nine Departments asked the two separately again. When Jiang Xiaojie learned that Zhang Yunyun almost died due to an allergy to anesthetics, she finally told them.