The novel that he recommended was " Two Phoenixes Flying in Time ". This novel described how the female protagonist transmigrated to the world of One Piece and became Ace's younger sister. In order to protect her sister and her own future, she constantly worked hard to improve her cultivation, gradually becoming a god and a saint as the sisters grew up. I hope you like this novel!
Here are some recommendations for doujinshi novels about Luffy's sister:
1. [One Piece: The Silver King: The male protagonist is the Silver King. He transmigrated to the world of One Piece and pursued a free life on the sea.]
2. " Luffy begins to save the world ": The male protagonist loses his rubber fruit and has a mission to save the world.
3. One Piece: World's First: A Doujinshi novel centered around Luffy and his friends.
4. One Piece Begins with Kokyu-ho: A Doujinshi novel with the theme of One Piece that starts with Kokyu-ho.
5. [One Piece: Navy Sword Hero]: A Doujinshi novel with One Piece as its theme.
6. One Piece: Thunder God Dharmaraja: A Doujinshi novel with Thunder God Dharmaraja as the theme.
7. One Piece: A Doujinshi novel with One Piece as the background.
Please note that these recommendations are based on the search results provided. There may be other doujin novels to choose from.
😋I recommend to you the book," Creating Dungeons from Leaf!" Although the title of the book was not directly related to One Piece, it was a Doujin novel that combined One Piece and Naruto. The general plot of the novel was that the female protagonist, known as " Red Leaf," transmigrated to the world of One Piece and became Luffy's sister. In order to find her brother, she became a pirate and began her journey of searching for Sky Island. The plot of this novel was light, funny, and interesting. I hope you like my recommendation. Muah!😗
Nami could also be a common character. She might help Luffy manage the financial aspects of his admiral duties, as well as use her navigation skills to assist in any navy - related voyages. And of course, she'd be there to keep Luffy in check when he gets too carried away.
Rayleigh would be a great candidate. He's an experienced pirate and has already trained Luffy for a while. He has a lot of knowledge about the world of pirates and could give Luffy a talk about the deeper secrets of the Grand Line or how to deal with the powerful enemies that lie ahead.
Happy might also become Luffy's friend. Luffy would be amused by Happy's flying ability and his cute appearance. Happy could also help Luffy navigate the Fairy Tail world, as he knows it well. And Luffy might share his food with Happy, which would make Happy very happy indeed.
He could face powerful sword - using pirates. Since Luffy now has a sword, he would attract the attention of other sword - masters in the pirate world. These opponents would test his new - found sword skills and force him to improve quickly.
Some fanfictions also pair Luffy with Hancock. Given Hancock's infatuation with Luffy in the original series, it's not a stretch to develop a full - blown love story. Her powerful status as a pirate empress and Luffy's carefree nature can create an interesting dynamic, with Hancock trying to win Luffy's heart while he is mostly oblivious to her romantic intentions.
She could be a former pirate captain herself. Maybe she was one of the most feared pirates in her time, and her skills and reputation were passed down to Luffy in some way, even if he didn't know it was from his mother.
As of now, in the manga, the identity of Luffy's mom remains unknown. There have been many theories and speculations among fans, but no official confirmation.