Given Mu Ruyue's current strength, she is unable to refine the Emperor-level Peak.
However, she possesses the Dan Book.
She has read the entire Dan Book, which is why she can instantly identify some issues in the old man's refining process…
Wu Yu wiped the sweat off his forehead, took out a green leaf and threw it into the elixir, causing a loud bang as the elixir exploded, shattering the entire medicine tripod…
"Failed again! I actually failed again!"
He chuckled bitterly, sighed, and said helplessly.
"Master…"
Du Feifei's eyes showed sympathy: "That incomplete elixir recipe doesn't seem to be easy to research. Take a break, look at you, covered in soot from the explosion…"
"No way, as an Alchemy Master, one must never admit defeat. I will absolutely not give up!"
Wu Yu frowned deeply: "But exactly where is the problem?"
