The #9 investigation team has been disbanded and members have been scattered around. One year later, the Chief of the National Police Agency, Sojiro Kandagawa, orders the creation of a special investigation team to cover from the initial investigation until it is sent to the prosecutor’s office. Sojiro appoints Sakutaro Munakata as the leader of the special investigation team. Former #9 investigation team members Naoki Asawa, Shiho Komiyama, Kengo Murase, Yasushi Aoyagi, Hideaki Yazawa and new member Ryo Shindo join the special investigation team.
