2014年、機械嫌いの高校生・夏目アキラは自分を変えたいと思い一歩を踏み出す。が、トラックに轢かれる──。そして2030年東京港湾部、未知の兵器『EX-ARM』取引現場に潜入した警察・上園美波とアンドロイド・アルマのコンビを『EX-ARM』No.08を装備した敵が襲う。彼女たちは起死回生を賭け、敵から奪った『EX-ARM』No.00を起動させるが…!?
Akira Natsume seems to almost have a phobia of electrical devices while also being very good at diagnosing them. He resolves to change himself for the better and get a girlfriend like his older brother did. …But then Akira suddenly dies in an accident. 16 years later a special policewoman and her android partner retrieve and activate a highly advanced AI and superweapon called EX-ARM and put it into full control of their ship as a last resort. Turns out the AI is actually just Akira’s brain!
