C1354 Mantle Guild mutation
When Ye Xuan heard the disciple beside him mention Mantle Dan, he also subconsciously searched the Super Devouring System. He discovered that the Super Devouring System was not convertible, but had the method to refine the Mantle Dan.
"The Mantle Dan was refined from the aura of a strange kind of Heaven-through Beast. This kind of Heaven-through Beast is called Earth Fiend