Feng Wu's demons were concocted from captured malicious ghosts that had been tortured to death in extremely cruel ways during their lifetimes; after their death, their souls were repeatedly refined, and their anguish and hatred were intensified through severe torture. Eventually, their logic and memories were gradually eroded until only their will to kill and vent their anger remained.
These demons had forgotten who their enemies were and lacked the concept of kin, driven only by the desire to kill and tear apart any living being they encountered.
Normally, they were bound by Feng Wu's Demon Path secret methods to the Demon Banner; once released, they would swarm toward their target.
Now, they were first immobilized by Shi Feiyang from afar with the Heavenly Secret Demon Technique; the divine demonic aura that burst forth terrified them. As they were repelled, their target shifted to Feng Wu.