Does cosplay require author authorization?

To cosplay a doujinshi work, the author had to give it permission. Doujinshi referred to the re-creations of original works, including manga, animation, games, novels, and so on. When creating doujinshi works, the author would usually obtain the copyright of the original work and decide how to use it to create the work. However, if a doujinshi work incorporated elements of the original work and those elements were considered part of the original work, then the doujinshi work would also need to obtain the copyright of the original work. If you wanted to cosplay a doujinshi work, you needed to first obtain the author's authorization. When creating a cosplay, one could choose to use the copyright of the original work to create costumes, props, etc., but they could not use the character, scene, lines, and other elements of the original work. If you want to use these elements, you need to get the author's permission. Without authorization, the copyright of the original work may be violated, and the copyright owner of the original work may be held accountable.