** TV anime spoilers **
The year is 2112. Rookie inspector Akane Tsunemori and enforcer Shinya Kogami cross paths with one man. That man; Shogo Makishima turns out to be the mastermind of a past case, and Kogami's target for revenge.
When Makishima goes on to shake the foundations of a peacekeeping system, he poses the question about where justice exists. In time, Kogami takes justice into his own hands against Makishima, before he goes into hiding…
In the year 2116, the government of Japan begins exporting the Sibyl System and unmanned robot drones to conflict areas in an attempt to spread its system to all corners of the globe. SEAUn; the Southeast Asia Union—decides to test the Sibyl System, and with it, the floating city of Shambhalafloat achieves fleeting peace and security.
However, shortly thereafter, terrorists from SEAUn enter Japanese soil… With the involvement of one man, the terrorists attempt to sneak through the Sibyl System and launch an attack against the system's brain. Akane Tsunemori of the Criminal Investigation Division sets off to investigate Shambhalafloat.
The truth of the justice brought down on new land, is revealed…