Zheng Tu's aura was distorted upon hearing Liu Yan's words. He hated it the most when others made fun of his appearance.
Zheng Tu looked like that because he cultivated the Penta-Poison Technique, so his body was infected by various toxins, and his skin became ugly.
This was probably a common problem the Penta-Poison Peak disciples faced, as their bodies contained various toxins.
These toxins conflicted with each other, causing their bodies to be prone to various problems.
Why did most of the Penta-Poison Peak disciples conceal their bodies?
This was the reason. Compared to their faces, the festering bodies were even more disgusting.
"Liu Yan? Black Widow?"
Zheng Tu glanced at Liu Yan and quickly lowered his head, not daring to let Liu Yan see his expression.
This was because Liu Yan was more famous in the inner sect.