The year is 2033, and Mega-Tokyo is just beginning to recover from a devastating earthquake that completely rearranged the face of Tokyo. Part of the recovery is due to the recent advancement in Boomer technology. Boomers are androids that look, think, and act almost like human beings. They can be put to work, perform as soldiers in the military, or mysteriously go berserk and terrorise the population. The corporation responsible for all the major Boomer advancements is a monolithic company called GENOM. But GENOM has a rather underhanded secret agenda — to take over the world. With the world dependent on Boomer technology, there does not seem to be much that can stand in GENOM's way. Only a mercenary team of four young women, the Knight Sabers, equipped with hardsuits, have the courage and the firepower to stand up to rampaging Boomers and the company behind them.