Izawa Norito (Sawamura Kazuki) is a man with unique ideas and confusing personality. He is a man with a huge amount of knowledge, keen insight and powerful fighting skills. He looks like a mystery, but he is actually a former public security elite police officer who is particularly good at infiltration and investigation. Due to a certain case, he was transferred to the General Affairs Department and the Information Division as the head of the department. The Information Division seems to be a gathering place for problematic people on the surface, but it is secretly carrying out a secret plan. This plan is to collect the personal information of all Japanese citizens, national surveillance cameras, email and telephone communication data, etc. into big data, and then combine it with the criminal data of the past 15 years, and analyze it with artificial intelligence and statistics to find highly dangerous people who are likely to commit murder. In order to make the "No Crime System" practical, the Information Division will use the information of these dangerous people to conduct infiltration and investigation to understand when, where and why the target will kill whom, so as to prevent the case from happening. So the Information Division on the surface is actually a new criminal investigation system called "No Crime". Izawa Norito is also responsible for managing a group of subordinates with unique personalities. Including Yamauchi Toru (Yokoyama Yu), who has been looking for his former partner Sakuragi Izumi (Ueto Aya) and is against Izawa, the sadistic fighting policewoman Odagiri Yui (Honda Tsubasa), the resentful hacker master Minami Hikotaro (Emoto Tokisho), and the omnipotent but inconspicuous Tamura Kaoru (Hirata Mitsuru). Their direct supervisor, Todou Sadaharu (Ito Atsushi), is an elite of the Metropolitan Police Department who wants to introduce the crime prediction system to Japan and created "No Crime". As for the original protagonist of the series, Sakuragi Izumi, she was a rookie policewoman in the last two series. After 7 years, she has become an active investigator on the front line. However, she disappeared during a special mission. In order to avoid public panic, the Metropolitan Police Department hid the "inappropriate truth" related to her disappearance. However, the emergence of the "No Crime" system is likely related to her disappearance. What is the unspeakable truth? What is the relationship between the new protagonist Izawa Norito and Sakuragi Izumi?