After Thousands of Years of Cultivating Immortality, How Come the Earth Is Occupied by Zombies?

What, I gave up the opportunity of the Immortal Emperor to return to Earth and you told me that this place was occupied by zombies. Xie Xuanji had just returned to Earth and saw ruins. He thought, "Syrian style is popular on Earth now?" Only one was seen. Covered in tatters and with pus on his face, he rushed towards Xie Xuanji. Xie Xuanji looked at the strange clothes and thought they were fine. With such enthusiasm, he opened his hands, only to see slight pain in his arms. With a backhand slap, the weird man was knocked away, and his head flew in the other direction. "It's over, it's over. I'm very powerful in my combined stage. If I don't know how to do it, I'll have to go to jail and eat the national meal when I come back."