One Piece was a very popular anime, and many people liked to write Doujinshi novels about One Piece. Doujinshi referred to stories that were based on the original work. They usually added some original plots and characters to meet the needs of different readers. One Piece's Doujinshi novels usually involved plots that were not in the original, such as adding new characters or changing the development of certain plots in the original. Some doujinshi novels would also involve some secret plots in the original work to let the readers understand the original work more deeply. Doujin novels were usually written by fans or professional writers. These works usually added some unique elements to the original work and modified and adjusted according to the needs of the readers. One Piece's Doujinshi novel was a popular form of creative writing that could provide readers with a deeper understanding and experience of the original work.