The Devil Without a Scepter

I don't know how long ago, many monsters suddenly appeared, which humans feared as drifting souls. Human civilization suffered a blow that was close to destruction. At the same time, humans discovered a kind of jade that could awaken a special bloodline, named it Mingyu, and established strongholds and towns based on the awakened ability. After awakening, humans call themselves devils and set up devil colleges in towns to train and discover new devils. The strongest person in each academy is the great devil, holding the great devil's scepter that symbolizes his identity. With the passage of time and the development of human technology, the story slowly unfolded outside Xueying City.