Chief Investigation Director Jiang Jianqiu (played by Zhang Xiwen) looks cold and unsmiling, but in a listed company corruption case, she approached the key figures in the case as an expectant mother and successfully found a breakthrough to solve the case.Chief Investigation Officer Situ Qiwen (played by Chen Shancong) has worked in the ICAC for more than 20 years and takes great care of newly recruited ICAC officers.

While investigating a maintenance bidding case, he took his assistant investigation director Ding Xin (played by Chen Xingyu) and pretended to be father and daughter to buy a property together.With the help of the police, he successfully persuaded the key figures in the case to serve as informants and collect criminal evidence about the construction company involved.

Senior Investigation Director Robin (played by Cheng Junhong) is good at analyzing problems from a scientific perspective. With his calm and calm personality, he used his IT expertise to find traces of communication between prisoners and the outside world in correctional officer corruption cases, and successfully solved the problem.The Correctional Services Department detects the case before searching the warehouse.In the middle school engineering corruption case, although Zhong Qiaoling and Ding Xin had great differences in their judgments about the people involved, they still insisted on pursuing the truth.Even in another insurance bribery case, when they were ordered to stop contacting the case because they knew one of the people involved, the two still did not give up. Their strong sense of justice and mission drove them to work tirelessly towards the goal of uncovering the truth.