Achieving a Divine Sea-grade physical body is exceptionally difficult to cultivate successfully!
Even in the original story, when Mu Chen successfully forged it, he had to consume the Immortal Origin that had been accumulated over tens of thousands of years.
One must know that this Immortal Origin was condensed and accumulated over tens of thousands of years by countless contenders of the Primordial Immortal Body as they practiced the Immortal Golden Body.
Chapter 626