Returning from the Xianxia World RFTXW

Five years ago, Xiao Fan suddenly disappeared under mysterious circumstances, and after that no one could find him, not even a corpse. No one knows, but he was transported to Xiao Fan World, a land of gods and demons. Five years later, Xiao Fan returned, but 5000 years had passed in Xianxia World. With mysterious powers, he returned home.
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Guys I am not a native speaker of English, please forgive me for errors in the text.