The girl learns Cheng Yan is Cheng Laosi and wants to help. But Lu Ming Jia asks what happens if Chief Qin was working with Cheng Yan. The doctor suggests that the killer is a close friend of the lawyer. Lu Ming Jia figures out why someone is trying to kill the lawyer. The girl says that a bad person who loses their memory won't turn good. Lu Ming Jia learns that Hu Yi Biao worked as an undercover before. Lu Ming Jia brings the gun for the gun expert to tell him about it. Lu Ming Jia suspects the lawyer is holding out on him. The evidence points to Chief Qin stealing the gun and returning a fake. The killer is a client he helped to win the case. Lu Ming Jia cancels the protective detail for the lawyer. (Source: jindreame at MyDramaList)