By the year 2061, the Boundary War has ended but Japan has been divided into four occupied zones where native Japanese are treated like second-class citizens. In the wake of the resulting social upheaval and unrest, a young boy named Amō Shiiba stumbles across an abandoned AMAIM called Kenbu and a rogue autonomous AI named Gai. With Kenbu and Gai, Amō has the opportunity to change the course of history for both himself and the entire nation of Japan.
