AMAIM Warrior at the borderline

In the year 2061, Japan has been divided and ruled by four major trade factions. The people were treated as slaves to the faction they belong to, and the country becomes the forefront of the world’s battle field following the deployment of humanoid special mobile weapon AMAIM. This is a story about 16 year-old young boy Amou Shiiba who is not good with getting along with people and Gai, an autonomous AI joining hands to retrieve Japan.