Even from the viewpoint of world history, there are few cities as prone to disaster as Tokyo. The city was completely destroyed in the Great Kanto Earthquake of 1923, and the carpet-bombing of Tokyo at the end of World War II, as its name suggests, reduced the city to a smoking pile of rubble. But each time, Tokyo rose again from the ashes.
And it is MegaTokyo of the future which is the setting for this story. The time is the year 2032. Tokyo is the world's most overcrowded city - the heart of industry, culture, information, and conflict.
The Second Great Kanto Earthquake, only seven years before, dealt the city a devastating blow. Presently, the capital is a city of confusion, in the midst of recovering from the ruins, physical and political, which were the result of the colossal earthquake. Cars running on gasohol and batteries crowd the streets, and a scar of the earthquake remains: a huge fault running through Tokyo, 50 meters wide at its widest point, separating the city into East and West. A gigantic tidal power plant has been established, and the world's first solar power plants have been founded, supplying this megalopolis with the electricity it consumes. Even now, clumps of office buildings, with rooftop-mounted independent photovoltaic collectors, await the sun's first rays, and the start of another day in MegaTokyo.
As night falls, a show begins in a dark corner of the city. Armored vehicles, carrying members of the AD Police, the special crimes control unit, are gathering at a highway interchange. Once again, a Boomer is on a rampage!
Boomers are an artificial life form, born of the technological union of mechatronics and biotechnology. They were originally created to substitute for humans in the development of outer space, but recently, a slightly different variant on that original concept has started to appear. They are terrifying cyberdroids, their entire bodies a cluster of weaponry; walking tanks, covered in super-high-density Abotex; and possessed of their own will. Naturally, their existence is illegal. And on top of all that, they even possess the power of matter fusion.
Boomers are primarily manufactured by the Genom Corporation. Genom: a company which rules from behind the scenes over the political and financial affairs of the entire Western World, and whose full aspect is unknown. Its temple-like headquarters, Genom Tower, a skyscraper nearly 1000 meters tall, symbolizes it well, oppressing all other buildings in District Three of Tokyo. It continues to extend towards the heavens even now, eight years since its construction began; a modern-day Tower of Babel.
This particular Boomer tears the Minigun from a police chopper it downed, uses it to replace its lost right arm, and runs amuck, strafing anything and anyone who comes within range! The heavily-armed AD Police are helpless before it. Who would let these things loose, and to what end?
Just then, figures appear before the Boomer. The slim silhouettes possess graceful, elegant lines, as if to say, there are females inside these battlesuits. In the wink of an eye, these women annihilate the Boomer, with the long-needle railguns, rotary lasersword, and laser cannon integrated into the artificial fingers of their suits. They call themselves the "Knight Sabers".
AD Police Officer Leon McNichol, who has rushed to the scene, can only watch in amazement. These women, attired in hardsuits surpassing military battlesuits, are vigilantes who smash lawlessness for money. Having defeated the Boomer, they vanish into the night.