Synopsis

Seven years have passed since the worst serial murder case in the jurisdiction of the Wangan Police Station.
Now responsible for protecting critical infrastructure – including an airport, expressways, and power substations – the precinct is set to relocate to the newly built Shin-Wangan Police Station, equipped with advanced security systems to strengthen counterterrorism efforts.
 
Aoshima Shunsaku, recently promoted to Section Chief of the Violent Crimes Division, is enthusiastically placed in charge of overseeing the relocation. However, just three days before the grand opening ceremony of the new station, a string of incidents erupts in rapid succession, including a safe-cracking burglary and a bus hijacking. The situation escalates further when three handguns are stolen from the Wangan Police Precinct, ultimately leading to a murder case.
 
In response, a Special Investigation Headquarters is established within the precinct. Aoshima joins the investigation alongside Torikai Seiichi, the administrative liaison officer tasked with coordinating between the Metropolitan Police Department and the local precinct. As the case unfolds, the stakes continue to rise…