C1253 Nine heaven defying refinements

The alchemists below were excited, no one knew what this technique meant better than them. Furthermore, Hu Xiao'er did not stop, they all held their breath, quietly watching Hu Xiao'er raise the level of this pill.

There was a large difference in difficulty between the third and fourth refinement, but Hu Xiao'er had already completely mastered the nine methods of refinement