Tokyo, 2120. Under the watch of the Sibyl System, Criminal Investigation Department Unit One Inspectors Arata Shindou and Kei Mikhail Ignatov find themselves at odds regarding truth and justice. Kouichi Azusawa, the architect of a series of crimes, turns his attention to the CID and attacks the NONA Tower. Division 01 (also known as Unit One) faces unprecedented danger—a situation that will test the loyalties of Shindou and Ignatov.