In the year 3195, an enduring struggle existed between humans and robots. Amidst this strife, Shaian, a combat armor equipped with self-awareness, had to power off due to the loss of a fellow soldier in the war. Shaian is reawakened after detecting the presence of humans nearby. Now in Brazil, Shaian's arch-nemesis, who was once the most significant danger a thousand years ago, has returned to create havoc anew. With the aid of a fresh partner, Shaian aims to vanquish this adversary before it unleashes widespread ruin throughout the continent.