In 2061 AD, Japan was ruled. It was divided and ruled by the four major economic zones of the world, and the Japanese were being oppressed as human beings in a client state. Japan has become the forefront of the world where the humanoid special mobile weapon AMAIM introduced by each economic zone is striding.
One day, Amou Shiiba, a boy who loves machines, meets an autonomous thinking AI "Guy". With this as a trigger, Amou will devote himself to the battle to regain Japan . He rode the AMAIM "Kenbu" he built himself.
