Xinyu traveled through the book, and found that she was in a novel she had read before, and she was still a stranger in the novel, so she lived a life of watching pigs' feet while working hard. It wasn't until she died that she realized that not only had she passed through the book, but she was about to pass through it. It was really fun to travel back and forth for a while and keep wearing it!
Purpose: Do your best to contribute to the world through time travel