Black Iron God of War

In the golden age, masters of the human race emerged in large numbers. Some were powerful enough to tear apart the heaven and earth, turn the rain over and turn the clouds, and rule the world together with the gods. In the Silver Age, humans and gods fought against each other. The humans built the Silver Empire and led hundreds of races to fight against the gods. In the Bronze Age, various ethnic groups broke up, and the human race established the Bronze Dynasty and fought against all ethnic groups. In the Black Iron Age, demons roamed freely, ghosts plundered, and the human race was completely reduced to oppression and slavery. "After the Bronze Dynasty, there will be no king of black iron." Let's see how the protagonist changes his destiny in a desperate situation and leads the human race to rise strongly!