If the character in the novel was created by the author and had nothing to do with the novel, then it was not considered an copyright violation. According to the copyright law, copyright included the right to create, adapt, translate, compile, and display. Cosplay referred to imitating and restoring the characters in novels, animations, games, and other works as a form of respect. Therefore, if a cosplayer's work was a character in a novel or other work and was only for the purpose of paying tribute and not for commercial use, it was legal. However, if a cosplayer's work has a direct or indirect connection with a character in a novel or other work, such as using a character in a novel or other work as a prototype or using it for commercial use, it may involve the problem of copyright. Therefore, if one wanted to cosplay a character in a novel, it was best to confirm whether their creation was directly or indirectly related to the characters in the novel or other works to avoid the problem of copyright.