C76 Demon Lord Black Dragon(3)

Wu Ming thought for a while and said, "You are the Demon Lord of Devil Realm, I wonder what the division of your Devil Realm's strength is like?"

The Black Dragon said, "Devil Realm is divided into Demon Dwellers, Sky Demons, Demon Soldiers, Demon Generals, Demon Commanders, Demon Lords, Demon Emperors, and Demon Sovereigns. Moreover, each time is divided into three periods: the front