There was no conclusive evidence to prove that there was a plagiarism relationship between the two books. Although there were some similarities in the storyline and characters of the two books, this did not mean that they copied each other. In fact, the authors of these two books might have done a better job in sharing inspiration. Just like any other literary work, the author may draw inspiration and elements from other works, historical events, cultural traditions, etc. and integrate them into his own work. This kind of borrowing and sharing of inspiration was not plagiarism, but a creative strategy and style. In addition, some people thought that some of the plots and characters in these two books might be common plots and characters in early online novels, so the author might have just chosen some classic plots and characters and applied them to his own works. The issue of plagiarism between the two books, Poison of the Concubine's Daughter and Rebirth of the Beautiful Daughter of the First Born, was still controversial and needed further research and discussion.