Kurz

Kurz is a material, found by Jesaja Geier, and his german science team. The team included Ludwig Volmar, a scientist that later went insane after Jesaja was killed, and most of the science team had escaped from Germany. Later, not long after Jesaja was killed, Otto Ruff, and Stefan Hartz found a good use of it, which allowed it to create its own bodies. They hired a scientist named Andreas Bosch. Not long after, Bosch started experimenting on people who resisted everything in their grand german group, Erfinder. Bosch not only created a clear copy of Otto, and Stefan.

Stefans copy could be controlled by him, or Bosch, for he had invented the whole creature that always would act, and speak like the original. Later Otto and Stefan decided to hatch a plan to kill Bosch, for they didn't entirely trust him. Before pointing a shotgun on Bosch's head, they stole all of his research, and later shot him in the chest, killing him instantly. The group of Erfinder wasn't happy about his death, but understood that Otto and Stefan didn't trust him. For this, the man who shot Bosch, Stefan Hartz received a helmet that had an icon that was different from the one every other soldier had. From this day, when someone saw that icon, the person was considered a killer for law.

About a week later. A rebel named Niemcy Zamek was captured, and a friend of his named Herbert made sure he had a shotgun, which was used to kill Bosch. He killed many soldiers, including Otto. Then, he finds Jesaja Geier's dead body rotting on a chair. Then, Stefan's copy surprises him, calling him a moron, and asks him: "Can't you read?" In reference to the sign above the door that Niemcy went trough to the room where Jesaja sits dead. The Stefan decides to spare Niemcy, and makes the copy turn into piles of Jesion, a remaining of Kurz that has been used so much, it's unusable. After the copy is only clothes and Jesion, Niemcy turns around and sees that Jesaja's head had dropped to the floor, which told him that Jesaja's body wasn't a copy made of Kurz.

Fun fact: Kurz, in polish is dust. And Jesion, in polish is Ash.