Mateus, a hero who swore to protect his world from the threat of Doomsday, gave his life so that his companions could complete the mission.
But, he could never predict that the enemy he fought at the cost of his own life would choose him as a way to survive. That he would become himself the enemy.
After waking up in a body that was not his own, made of mechanical nanites and perpetually hungry, he only desired to go back home. To embrace his sister, to have some peace.
His very nature, however, would never allow it.