Year 21-16 --the device spreads throughout the world, and also The Japanese government begins to export the Sibyl System unmanned drone robots into countries. A state in the midst of a civil war, SEAUn (that the South East Asia Union), attracts in the Sibyl System within an experiment. Under the new system, the coastal town of Shambala Float reaches peace and safety. But SEAUn sends terrorists . They slip through the Sibyl System and strike from within. The shadow of a person that is certain falls on this incident. To Shambala Float, Tsunemori travels in charge of the authorities to research. Justice to this ground's truth will get clear.