C237 What Kind of Pill Is This

What kind of pill is this?

"I wonder how this Qi Tian Dan of mine is?" Mu Xuan's heart was filled with anticipation, because this Qi Tian Dan was a trial by fire for his Heaven Replenishing Pill. Consumption. It had been used up! He had spent all his energy in seven days. It should be one of the peak refinements he had spent half a year studying the Dao of Alchemy.

"Senior Sister