Zephyr's Horror.

Shi Lang spat on the ground as he displayed his disgust toward the shocked leader of the demonic cultivator, Zephyr. 

The latter asked in disbelief, "What do you mean the demonic energy cannot harm you? Even if you have lightning spiritual energy, if the demonic energy enters your body, it would still do you some harm. How are you able to stand up without any trouble? Tell me!" 

Zephyr felt that if this continued, he would go mad. In his sect, his demonic energy was stronger than anyone, including his master. This human was the strongest person he had ever faced. Not only did this battle shatter his arrogance of being invincible in his realm, but it also made him doubt himself.