This drama is adapted from a comic of the same name written by Reiko Kiyomizu. It uses the Ninth Research Office of Forensics of the Science Police Research Institute, commonly known as the Ninth “ as the stage. It uses special MRI technology to reproduce the memory of the deceased's life.Shinko (Itagaki Rikwangto) is the ninth founding member and director of the office.

Due to a certain incident, Katsuo Suzuki (Yusuke Nakajima) who is both a friend and a colleagueDeadly, in front of the salary, he was assigned to the same new searcher Aoki and his party (Yuosu Nakajima).The two saw the ” thoughts and “THE TOP SECRET” hidden by the deceased until their death. Although they felt guilt and entanglement in their hearts, they still struggled to solve the difficult case and became irreplaceable partners.