Fifty Thousand Years of Cultivation, the End of the World?

Because of an accident, Lu Yongheng traveled to the world of immortal cultivation, cultivated all kinds of laws, fought against all realms, and ascended to the position of Immortal Emperor step by step. However, he never thought that after 50,000 years of cultivation, he returned to the earth, and the end of the world has come. All races are standing tall, zombies are rampant, monsters are invading, alien civilizations are invading the earth, and civilizations all over the earth are recovering... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.