The Four Great Faeces of Light Fictions was an online term that originated from the mainland of China's online culture. It was not a formal literary classification or selection criteria. The selection criteria were mainly based on the readers 'personal preferences and evaluations rather than objective literary standards or artistic value. However, according to some readers 'feedback and comments, light novels usually referred to inferior works with monotonous content, poor writing, cliché plots, meaningless characters, and so on. Although these works did not necessarily have high literary value, they usually could not meet the basic needs of readers for literary works. It should be noted that light novels are a form of literature for young readers. The quality of light novels is uneven. It is not easy to summarize all excellent works with the "four great works".