C2309 Berserk Blood(2)

Gu Yan's expression became solemn, and he said with a confident smile, "As long as I can refine the Blood Transformation Pill, I will be able to eliminate these special ingredients!"

As he spoke, Gu Yan rubbed his chin and muttered to himself, "If I remember correctly, there seems to be a rare medicinal ingredient in the Blood Thinning Pill. It is very difficult to do