The characters in the novel could help readers better understand the plot and theme of the story, and at the same time, it could also enhance the appeal and tension of the novel. The following are some of the main functions of the characters in the novel: 1. Drive the development of the story: The characters in the novel can promote the development of the story through actions, words, reactions, etc., leading to the next plot and scene. 2. Shaping the character's personality: The characters in the novel can let the readers better understand and understand the character's personality, preferences, thoughts, beliefs, etc., so as to deepen the reader's understanding and resonance with the character. 3. Demonstrate the theme: The characters in the novel can express the theme through their words, deeds and experiences, so that the readers can better understand and understand the author's intentions and views. 4. Enhancing the appeal and plot tension of the novel: The characters in the novel can attract the attention of the readers through their unique charm and personality, thus enhancing the appeal and plot tension of the novel and making the readers more involved in the plot of the novel. 5. Present the background of the novel: The characters in the novel can present the background of the novel so that the readers can better understand the social and cultural background of the novel and better understand the plot and theme of the novel.