Having failed to protect the witness in an international drug smuggling case, Interpol Officer Xu Guo Ying resigned as a result. In a twist of fate, Guo Ying took on witness-hunting, where in the process, Funeral planner Wang Yuxuan and arcade staff Chen Zhi Ming joined her league of justice. But Guo Ying soon realized Zhi Ming and Yuxuan were not what they appeared to be.