Following a devastating earthquake in Tokyo, Genom rises to prominence by offering artificial organic beings known as Boomers to reconstruct the city and serve as a labor force. Despite their utility, some Boomers go rogue, posing a challenge even for the elite AD Police. Seeking work in Tokyo, Lina Yamazaki aspires not only for a job but to join the Knight Sabers, a vigilante group utilizing powered suits to combat these rebellious Boomers.