Well, in the 'big mom is luffy's mom fanfic', they might have crafted a story where Big Mom is Luffy's mom. But it goes against what we know from the official 'One Piece' story. Fanfictions like this can be really interesting as they can rewrite the story in unexpected ways. They might have some interesting plot twists and explanations within the fanfic to justify this relationship, but it's not part of the main 'One Piece' universe.
One possible plot implication could be a change in Luffy's power source. Since Big Mom has such unique and powerful abilities, Luffy might inherit or be related to some of those powers in the fanfic. Maybe his Devil Fruit ability could be related to Big Mom's in some way.
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.
The person who is telling the story is often called the narrator. It could be the main character in a first - person narrative, sharing their own experiences directly. For example, in 'The Catcher in the Rye', Holden Caulfield is the narrator, and we see the story unfold through his eyes.
A fanfiction could depict Portgas D Rouge as a key figure in a larger story involving Sister Dragon and Luffy's mom. Rouge's sacrifice could have been related to something that Sister Dragon was aware of. Luffy's mom, on the other hand, might have passed on certain powers or knowledge to Rouge before her death. This could lead to a series of events in the fanfiction where Luffy discovers the truth about his mother through the memories and legacies left by Rouge and Sister Dragon.
We can learn about the events that are taking place in the story. The narrator will describe what is happening, who is involved, and where it is all going on.
One possible plot could be that Sister Dragon was an old acquaintance of Portgas D Rouge. They both knew Luffy's mom. Sister Dragon could be on a mission to protect Luffy, as she had made a promise to Luffy's mom long ago. Portgas D Rouge's story of giving birth to Ace could be connected to this overall plot, perhaps there was a threat that they were all trying to prevent that was related to Luffy's future as well.
Here are a few recommendations for novels about Luffy's rebirth:
1. " One Piece: Tricking Luffy into Joining the Army, Changing the Plot to Become Stronger ": This novel tells the story of the protagonist who transmigrated to the world of One Piece and awakened the Rebellious System, determined to become a Navy General.
2. In the story, the protagonist, Luffy, Ace, and Sabot became brothers and fought hard for their beliefs in the world of One Piece.
3. [One Piece: Dominate the World]: This novel takes place in the world 16 years after Luffy became One Piece and tells a series of stories.
4. [One Piece: Plant Fruit]: The protagonist was reborn in the era of the great pirates. He mastered the ability of the plant fruit and had various interactions and adventures with Luffy and the others.
These novels were all about Luffy's rebirth and transmigration. Each one had a different plot and development. I hope you like one of them!
In Luffy harem fanfiction, his relationships often start from friendship. Since Luffy is a friendly and open - hearted character, the female characters are first drawn to him as friends. For example, Nami might start as just a crewmate but gradually develop deeper feelings. His relationships develop as he goes through adventures together with them. They see his courage and selflessness, which makes them admire him more.