C489 Studying the Non-su Sutra(1)

Wusu's True Scripture.

It was a book about alchemy.

It could be said that it contained countless methods to refine medicinal pills.

Small to the Essence Returning Pill, large to the Profound Opening Pill, and even the legendary medicinal pills that surpassed the Void Stage also existed. However, the medicinal pills required were far too precious, and simply did not exist in this world