Immortality Begins with Acquiring the Dongtian Inheritance

There are magical and strange fairy buildings one after another in the cave sky. I wonder if the immortal structure was created in Dongtian? Or is it the immortal building that creates the cave? Zhang Ze, a young casual cultivator from the casual cultivator alliance, would definitely not know the answer to such a question. However, he seemed to know it recently. Because he obtained a design drawing of Cangming Cave Sky!