Wei Immortal was already a Third-Grade True Immortal.
Now, he gathered a mass of dark Sea of Realms energy in his palm, seemingly unbothered by it, unlike the Mountain Ancestor and Saint Ancestor who became true immortals.
One reason was he had gathered Tao Fruit, which could automatically shield against Sea of Realms energy, preventing it from affecting his Immortal Body.
Secondly, Wei Immortal also possessed the remains of Buzhou Mountain, infused with the power within Buzhou Mountain, leading him to momentarily become consumed by darkness.
Although the Buzhou Mountain remains he acquired were from a small world, not within the Sea of Realms, they were still washed and invaded by the Sea of Realms energy.
Hence, when Wei Immortal first obtained the Buzhou Mountain remains, they contained a large amount of Sea of Realms energy.
For a thousand years, Wei Immortal continually cleansed the remnants of Sea of Realms energy.
