To write a time-travel novel, one needed to consider the background and plot of the time-travel, as well as how to attract the interest of the readers. Here are some possible backgrounds and plots for a time-travel novel: 1. Travel to another world such as a magical world, a sci-fi world, an ancient world, etc. to explore the culture, history, and lifestyle of this world. 2. Modern Time Travel: Travel to the past, such as the 19th century, the 20th century, etc., and become a character of a certain historical period to experience the life and culture of that time. [3. Rebirth: The body is accidentally destroyed and reincarnated into the past. For example, when it was an infant, it reintegrated into society through memories and skills.] 4. Suspense travel: travel to an unknown realm and discover that the world is full of mystery and danger. You need to find your way home through various means. 5 Love Time Travel: Travel to a strange world and meet a beautiful woman. They have feelings for each other, but the political and social structure of this world does not allow them to be together. Writing a time-travel novel required careful consideration of the plot and background to create a fascinating story that would attract the reader's interest.