The Art of Refining

In the past, Pollux Alder gave Wraith fourth-grade spiritual wine, but this time it was sixth-grade. How could Wraith not be happy?
"Whatever you think is good."
Pollux Alder nodded and smiled, "But it's absurd to drink such good wine for free."
"oh?"
Hearing this, Wraith put down the wine jar, turned his eyes to Pollux Alder, and asked, "Didn't I tell you last time that when you reach the level of a god, I will naturally teach you the Immortal Golden Body Technique? Do you have any...