C450 Refining examination pills

Chang Sheng raised his eyes and looked at the medicinal herbs placed in front of him, and when he looked, everyone's heart trembled.

From the start, he had relied on smelling the medicinal herbs to distinguish them. Later on, he did not look at the medicinal herbs either, probably also by smelling them to get the medicinal herbs out. Now that he finally began to look at the medicinal herbs