1. Episode 1: A Murder Trick Revealed by a Legendary Detective Who "Remembers All of Shinjuku"!!

Nearing retirement, Detective Ichiro Onizuka apprehends a violent attacker on Waseda Street but suffers a debilitating spinal injury. One year later, now confined to a wheelchair, he returns to the Shinjuku Higashi Police Station as Chief of the Judicial Affairs Section and investigates a suspicious fatal fall at the exact building where he was injured. Alongside detectives Saki and Keitaro, Onizuka uses his detailed memory of the neighborhood's past to solve the case.