Writing fanfiction about celebrities may involve copyright issues, so it may be considered illegal in some countries or regions. Whether it was illegal or not depended on whether the doujinshi that was created complied with local copyright standards and regulations. For example, in some countries or regions, violating the privacy or image of a celebrity or using their name or image may be considered an act of copyright violation. In addition, if the same-sex relationship included their personal relationship or love relationship, it might also be considered as a violation of rights. Therefore, before creating doujinshi, it is recommended to understand the local copyright laws and regulations to avoid unnecessary legal risks. At the same time, they should also pay attention to respecting the intellectual property rights and personal privacy of others and maintain the legal and moral bottom line of creation.