Immortal Dream Without Trace: Lost in the Fantasy World

This is a very slow paced real record! Facing the end of the world of cultivation, we need to rely on earth's technology to save us! I originally thought it was a monster invading the world of cultivation, but I didn't expect it to be the purest human race. The pure human race invades the impure world of practice just to make the "original realm" purer. After the male protagonist learned the truth, he was quite speechless. After thousands of years of turmoil, he actually returned to "Earth".