After penetrating through the army of demons, Zhang Tie looked back as he saw a tunnel whose length, width and height were over 500 m respectively. There wasn't even one demon knight throughout the tunnel. All the ordinary earth demon knights and black iron knights near that tunnel unconsciously stayed far away from Zhang Tie.
Demon knights were valiant; however, they were not idiots. Neither would they seek for death when they were clear that they were destined to die. With his sword and song, Zhang Tie had scared those demon knights so much that very few of them dared confront with Zhang Tie's blade anymore.
The fact that he himself scared the army of demon knights really made Zhang Tie arrogant.