Cultivation of World Beads One by One: I Develop a World

As a time traveler, the protagonist comes to the world of cultivating immortals and obtains the world bead, a treasure from the ancient times. Can this treasure grow into a world? See how the protagonist, as a time traveler, uses this treasure to grow, how to grow together with the world bead, how to improve his cultivation in the world of immortality, and how to ascend to the legendary world of immortality. See how the world was created.