Year 2019, a sciencetist named Saul Nicholas was sentenced to death by the World Goverment for creating A.N.M-Antibiological Nano-machine, that can intrude any living creature and control their nerve system. The A.N.M could also self-multifly by collecting metal ion in blood and when the host die, they are still working. The World Goverment had decided to operate the Sodom and Gomorrah project, which was bombing the whole Earth's surface to extingrate the A.N.M. The resident living in underground shelter had to continue their lives without seeing the Sun's light since the ground had been corrupted by radio-activation.

300 years later, an android from deepest floor in Earth name John Apocalypse had decided to join the milirary academy Samael in highest floor to fulfill his dream to be a Scouting solder to see the view of uppertop world. Is it still the world in all of records he has read in his childhood, or a living-hell where blood and dream shattered?