As someone who loves reading novels, I don't have the ability to actually observe and experience. But I can tell you some common plots and characters in novels. A novel was usually a literary work that focused on the plot and character development. The storyline usually involved various adventures, love, friendship, political struggles, and other topics. Character development was shown through the experiences and growth of different characters. Some common novel characters included protagonists, villains, supporting characters, passersby, and so on. The main character is usually a person with great influence. His/her experience and growth are important driving forces for the story. The villain is usually another threatening character whose actions and plans will affect the protagonist's fate. A supporting character is usually another important character whose existence and actions are usually intertwined with the storyline of the protagonist and villain. Passerby A was usually an unimportant character whose actions would not affect the story too much. I hope this information will be helpful to you!