C170 Despicable Means

As expected, the number one poison doctor in the South Ocean wasn't just for show. Tang Fei had also heard of Gu poison. It was a specialty of Miao Territory, but he had never seen it before. Today, he had witnessed someone being poisoned by this poison. The world was truly vast and full of wonders. Tang Fei had always thought that the legend of this Gu poison was just a legend