There is Penglai, a fairy island in the Canglan Sea, shrouded in clouds and mist, filled with spiritual essences. If you eat it, you will live forever and coexist with the sun and the moon. There are immortals on the island, floating out of the dust, and their magic can reach the gods.
The ancestors of Penglai predicted the fate marks of the stars and came to the conclusion that "Penglai will be eternal", so no one ever worried about the fate of Penglai.
Until Xi Yao was the only one left in Penglai, he shouldered the mission of Penglai's life and death. So he went to Biluo Mountain to look for his fiancée, but due to the riots in the Abyss, he wandered in Biye Continent.
During the years in Biye Continent, after experiencing the mortal world, I finally understood the true meaning of Penglai eternity.