Writing a novel required a lot of steps, including conception, outline, character setting, plot design, scene description, and so on. If you are stuck on a plot, you can try to think about the purpose and meaning of the plot and its role in the entire story. Then, he could try to extract some key information from the plot, such as the characteristics of the characters, plot turning points, conflict points, and so on. Then, he could use this information to re-imagine the plot. You can also try to let the characters explore the plot themselves, for example, through the actions and dialogue of the characters to promote the development of the plot, which can make the story more lively and interesting. He could also try changing some scenes or perspectives to make the story more colorful. Finally, remember to read more excellent novels to draw inspiration from them and constantly improve your writing skills.