Yukiko Makabe works at the #3 Special Investigation Team of the Metropolitan Police Department. She has excellent negotiation skills. Yukiko then attempts to negotiate with a hijacker on a bus, but something unexpected happens and her mission fails. Yukiko takes full responsibility and takes a transfer to a special interrogation team "Kintori". Her boss is Katsutoshi Kajiyama and Yukiko has had a difficult working relationship with him in the past. Her other coworkers include Susumu Hishimoto, Zenjiro Nakata and Haruo Koishikawa.

A mysterious case has been brought up to the Tokyo Metropolitan Police Department’s Emergency Response Team or Kintori, as they receive a request to interrogate a suspect who had turned herself in for another murder hours after having been released from prison. With forensic evidence that the crime must have taken place at least a week ago, it would have been impossible for her to execute the crime even though the body and murder weapon with are in line with her statement. What is the reason for the lie, and how can the Kintori prove it?