Rookie detective Izumi Sakuragi (Ueto Aya , from Attention, please; Attack No. 1) is assigned to the Special Investigations Office, a newly created office in the Metropolitan Police Department. The Special Investigations Office uses the latest in DNA analysis and forensics science to solve previously unsolved cases and missing person cases.
In the first episode, Izumi Sakuragi and partner Yuki Fukasawa (Tomomi Maruyama) are called to a crime scene where a woman's decayed body is found under a construction site. Clues then lead the team to connect the decayed body with an unsolved ¥3 million robbery case that occurred 10 years ago ...