An Urbanite's Self-Cultivation

On one side are numerous pages torn out of history, and on the other side is a cyber city where fantasy and science fiction intersect. By chance, they overlap and meet each other. The script was supposed to be carried out in secret, but the process was changed by the arrival of an uninvited guest, and there were more falling stars in the night sky. He didn't know the answer, he just wanted to keep the company running and learn about this new world. "So, this is not time travel, but a dream?"