Blassreiter

The story takes place in a fictional version of Germany, where bio-mechanical creatures called "Demoniacs" suddenly emerge, reanimated from corpses to attack humans without reason. Amid the chaos, some people transform into Demoniacs themselves, with a few using their newfound powers for good while others embrace violence. Among them, one Demoniac will surpass the rest and become known as the "Blassreiter."