The signs of a bad novel include, but are not limited to: 1. The content was dull and unattractive. 2. The plot is monotonous and lacks ups and downs and conflicts. 3. The character was not well portrayed and lacked personality and depth. Poor writing, unclear language, lack of fluency and legibility. 5. The setting is unreasonable and lacks logic and cohesiveness. 6. The theme is not clear and lacks depth and meaning. The ending was too hasty and unreasonable, lacking aftertaste and value. 8. The content is suspected of plagiarism or copyright violation and does not respect the original. 9. Plot and character settings are inconsistent with historical reality and do not respect social and historical background. 10. The lack of emotional resonance cannot cause the reader to resonate emotionally and mentally.