Doujinshi novels could change the original novel, which meant that the original novel's route was changed, and the characters 'appearances did not match the setting. This was a common situation in online novels because Doujinshi novels were a form of literature, and the creators could freely modify the content of the original novel. However, when creating doujinshi, one must respect the spirit and worldview of the original work and not tamper with the original route and storyline. If the route of the Doujin novel was different from the original, it might lead to a situation where the character's appearance and the setting did not match. This is because the purpose of doujin novels is to satisfy the needs and preferences of readers. Therefore, creators may modify and adjust the characters and scenes in the original to satisfy their own creative desires. However, this kind of modification and adjustment had to follow the principles and worldview of the original work and could not deliberately destroy the spirit and plot of the original work. If the characters and scenes were changed too much, it might cause dissatisfaction and disgust among the readers and reduce their interest in Doujin novels. When writing Doujin novels, one had to carefully consider changing the original plot and storyline, respecting the spirit and worldview of the original work, and not deliberately destroying the original plot and storyline.