Ranmaru Shindo, five years after surviving the tragic Machida massacre, graduates from the Special Mobile Investigation Troops First Division training academy after he was recruited into the police force as a patrolman since the two Shindo siblings have joined the police force as part of moving on from what happened in Machida. During his transfer to the Shibuya precient, he encounters the red-haired woman in a police uniform who had been the sole cause of his nightmares and two officers, who are said to be elite officers from the TOKKO division. Ranmaru, with his friend and partner Ichiro Hanazono, investigate their first case of homicide with their superior Kaoru Kunikida after being indoctrinated into TOKKI when mysterious people began to attack the investigation team and their patrolman escorts with brute strength. It appeared that their sheer strength was about to defeat them for good. Ranmaru thought that he was about to die on his first day of duty as a TOKKI detective when the red-haired girl, wearing a black jacket and wielding a broadsword, arrives in time to battle the strange men and in fact, decapitates one of them holding Ranmaru by his throat