Rewind Three Years and Get Back into the Game

As he fell asleep in the Internet cafe, Ren Lingyun never imagined that he had traveled to Chongling Piaolu in "Chongling World". Speaking of time travel and being out of reach, he looked forward to this day and chose his beloved mage without hesitation. Is this world a game he has played before? Is it still that timeline? Do you still have the joy of conquering BOSS with your teammates and sweating heartily?