C429 Pill Formation

"This is impossible? That brat is clearly only a Martial King. How was he able to refine a Rank 4 pill? " Seeing the smell coming out from Wu Xun's Cauldron, an old man in the spectator's grandstand said in a shocked voice.

He had refined pills for so many years, but he had never seen anything like this from a little Martial King kid. Either this guy used to have an extraordinary master