Chương 2233: Black Heaven's Heavenly Spirit

Inside the sovereign immortal aperture.

"Quick, take my place, I can't hold on anymore."

"I'll come!"

"Huff… we finally got through another stage."

Within Four Elements Square Regret Blood Refinement Pool, the assisting Gu Immortals were all breathing roughly.

After the first failure, Fang Yuan continued to experience two more failed attempts.

He had no lack of rank nine wood path immortal materials, but time was pressing, he had no choice but to use more aggressive methods.

He changed the procedure of the Gu refinement.

Rank eight Heavenly Essence Treasure Imperial Lotus had to be protected, but the steps before that became more simplified. As a result, the expenditure of immortal essence became more intense, each step became more complex and needed the full effort of the assisting Gu Immortals.

Evidently, they were reaching their limit.

Fang Yuan frowned deeply.