C247 Relieving and Interpreting

Yin Yang Bipolar Pill were extremely rare, and Grass Saint Lord only had two left. Moreover, these two Pill were left behind by the Alchemist Grandmaster Qi Shi when he was still alive.

Qi Shi had only managed to refine five Yin Yang Bipolar Pill in his lifetime. Of course, it wasn't because Qi Shi's skill in alchemy wasn't high enough