C846 deltamethyl

"The Dao of alchemy is not as easy as you think. You, the Pill King, can succeed, but it won't be so simple to control the refinement of a Grade 5 pill." Bai Chenfeng said to Xiao Chen. Although Xiao Chen was talented, there were many things he could control in the Pill Dao. Just reading those books was not enough.

Those were for Xiao Chen's foundation