C221 Do Whatever You Want.

"The Book of Pills?"

Yuan Qing looked at the secret manual in his hand in surprise.

"That's right, this is where my life's hard work lies. It contains several hundred kinds of pills refining methods, and it also contains the dozens of types of pill that I invented."

"It's a pity that even though I have studied it for my entire life, I am still unable to learn all of the refining methods on it