C171 great potency

"Oh? What do you mean by that? Could it be that someone has already grasped this secret recipe? " Ling Xiao asked curiously after hearing this.

Wuyan Aobo nodded his head and said, "That's right, at that time I only did some experiments based on the fact that these herbs are not afraid of fire, but in the end I only found out about them from someone in the forest