God grants humans a special ability that they can use only once to combat monsters.
Due to his desire to be an adventurer and the fact that he possesses a skill that is useless in battle, Chrome is unable to give up his dream of becoming one, and because of this, he is despised and forced to work menial jobs and household chores.
But he perishes while acting as a scapegoat and fleeing a monster. But at that point, his talent comes into play. (Revival) is a talent. He has the ability to rise from the dead once, and Chrome does so miraculously as a skeleton monster known as a "Wight".