Tokyo, 2014. An ordinary high schooler, Natsume Akira, meets with a road accident. When we wakes up next, it's 2030, and he finds himself aboard a smuggling vessel in the Tokyo Bay. What's more, his body is all mechanical, with only his brain remaining the way it was.
And EX-ARM is the ultimate power. 
It makes its wielders superior.
،و"إكس-آرم" هي القوّة المُطلقة 
تجعل مستعملها صاحب أفضليّة
Die Ex-Arms sind die ultimative Macht!
Les EX-ARM sont un pouvoir ultime
que les plus forts manipulent !
Le Ex-Arm sono il potere definitivo.
Chi le controlla è superiore!
Um EX-ARM é o maior poder que há
e quem o tem é um ser superior.
А Экс-Арм — настоящее могущество.
Его владелец превосходит всех.