This question involved copyright and some knowledge of the publishing industry. Not all legitimate novels would have repetitions. However, under normal circumstances, the original novel would be reviewed by the copyright owner before being published. If the novel passed the review, it would be authorized by the copyright owner to be published by the publishing house. During the publishing process, the publishing house would make changes and editors to ensure the accuracy and completeness of the novel to avoid repetition with the published works. Of course, some genuine novels might have some changes and cuts in the editing process, resulting in some plots or characters being repeated. However, in this case, the repeated parts are usually recognized by the copyright owner and will not have a negative impact on the entire work. The main reason why legitimate novels avoided repetition was to protect the rights of copyright owners and prevent the publishing house from violating the copyright of others in the process of publishing. At the same time, it could also allow readers to have a better reading experience and avoid unnecessary repetition and contradictions.