It is the year 2033 and the world is a much different place. Tokyo has been devastated by a major earthquake and rebuilt as Megatokyo. Amid the chaos surrounding the devastation and rebuilding was a perfect window for the emergence of Boomers. Boomers are humanoid robots created to perform all manner of work -- manual, sexual, and otherwise. The giant corporation GENOM, which created the Boomers, however, has a problem on its hands since they sometimes rebel from their assigned task and wreck havoc. The solution to this problem comes in the form of the Knight Sabers, an all-female fighting force equipped with armor and weaponry for the main task of handling insurgent Boomers. The task of the Knight Sabers, however, turns out to be more complicated than it looks. Is the enemy really just any rogue Boomer, or is it GENOM itself?