Doomsday War

**Doomsday War** (終焉戦争, *shuen sensou*, ***Doomsday War***?), sometimes referred to as the **Great Doomsday War** (終焉大戦, *shuen taisen*, ***Great Doomsday War***?) is a series of major battles that took place 78 years before the events of the Dead Or School video game.

## Overview

In a dystopian future, many human beings were afflicted with an airborne virus that turned them into Mutants. The battle between the surviving humans and the mutants was fierce, leading to a decisive confrontation to determine which species will take control. The Doomsday War raged on for 3 years but the mutants ultimately proved too much for humanity, leaving them with no choice but to give up life on the surface and take refuge underground.

Fearing invasion by the mutants, the humans constantly went further below, digging as deep as they could. Civilization, culture and technological know-how was almost completely lost to time as the humans desperately continued to escape from their sworn enemies in the decades to come.

Details of the war were pieced together by the Civilization Investigators several years later and they reported this version, which in turn became common knowledge for all underground residents. But when a young girl named Hisako decides to ascend to the surface to find a school to go to, her group learns about the real events of the Doomsday War from the Machine Doll Fou and Dr. Yoshitaka, the only survivor who retained memories of the old Japan.

## The Truth

The actual warring forces were Humans and Machine Dolls, robots that were produced en masse a long time ago to assist in domestic and medical affairs. Less than five years after their proliferation, the government declared Machine Dolls as illegal due to various alarming social issues that stem from or were further aggravated by their existence.

Cleanup and dismantling caravans were mobilized nationwide to confiscate the Machine Dolls. However, a number of them learned how to bypass or even completely destroy their Robotomy limiters. This led to them rebelling against the humans for self-preservation. The war raged on for three years, ending on a stalemate. Both sides then utilized biological warfare.

* Machine Dolls going berserk.
* Humans becoming Mutants
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Humans spread a computer virus that turned the Machine Dolls into berserkers and blocked their systems from taking in electricity. Likewise, the Machine Dolls employed an airborne bioweapon that turned majority of humans into Mutants. As a result, the conflict had deteriorated to something no different from a turf war between wild animals.

Losing the ability to tap into electrical outlets, the berserker Machine Dolls assimilated many of the Mutants, turning them into a new energy source. This unconventional combination also paved the way for more fearsome creatures called Cyborgs to appear.

The berserker Machine Dolls and Cyborgs harnessed human technology and built several weapons, like the Human Cocoon that mass-produces Mutants *(to ensure a constant supply of energy)* and the superweapon Driscoll, a bipedal assault mech that is programmed to eradicate every single human in existence.

However, there was a lone Machine Doll that did not go berserk, and set out to preserve humanity despite the grave situation. She drove the survivors underground, erased their memories of the surface world, and fought with the berserkers, Mutants and Cyborgs for the next several decades to prevent them from invading the evacuation settlements down below.

## Gallery

Berserker Machine Dolls VS Mutants.Machine Dolls faced a temporary problem with the loss of ability to take in electrical power......which was solved by harnessing Mutants as a new energy source......Cyborgs were also created from this once parasitic relationship.
## Notes & Trivia

* The in-game English translation did not give a proper name for this event, only referring to it as "the war".
* The underground residents of Ichigaya consider Hideki Daiba as a postwar hero, since he prevented a full-scale disaster by keeping burning Mutants away from the SDF base's fuel bunker.
* In the same vein, another personality that was considered a hero in Budokan was Tamio Inoue, since according to legend, he fought and killed a significant number of Mutants armed with only a guitar. Given that events will prove that the war actually played out differently, the legend may not be entirely true.