How would an OC son of a Roger Crew member fit into the existing story in One Piece fanfiction?

One possibility is that the OC son could be on a journey to discover his father's past. He might face many challenges as he tries to live up to the legacy of the Roger Crew. For example, he could encounter enemies who were once foes of the Roger Crew and they target him because of his relation. Maybe he also has some special abilities or knowledge passed down from his father which he uses to fight and survive in the dangerous One Piece world.

The OC brother could fit in as a strategist. Luffy is more of an action - first kind of leader, so having a brother who can think several steps ahead in battles and planning voyages would balance the crew's decision - making. For example, in dealing with the Navy's traps, the brother could analyze the situation and come up with a smart escape plan.

He could be a wild card. Since he's the son of Drogo, the Dothraki would respect his lineage. He could potentially side with Daenerys if he sees her as a means to achieve his own goals, like bringing glory to the Dothraki name. Or he could oppose her if he thinks she's leading the Dothraki astray from their traditional ways.

Naruto could fit in by using his physical abilities. His superhuman strength, speed, and endurance, which he developed through his ninja training, would make him a formidable opponent in the One Piece world. He could easily take on weaker pirates or even some of the lower - level Marines.

" I'm the Tenth Crew Member of One Piece " was a novel about the protagonist Luffy, who was brought to a mysterious world by the waves and became a tenth crew member during a shipwreck. In this world, Luffy met many new companions and embarked on a journey full of adventures and challenges. In this world, Luffy and his companions experienced many dangers and difficulties, but they always firmly believed in their dreams and kept moving forward.

It might not be exactly what you want, but I'll try my best to recommend a novel that's most relevant to your description." One Piece: The Rabbit on the White Beard Ship " is a light novel by the author, Chi Youxuan. The general plot of this novel is as follows: "Are you the legendary newcomer, Eagle Eye Mihawk?" "I'm sorry, I don't have a knife smaller than this." One day, the rookie Mihawk met a rabbit when he was out at sea. Rabbit took out a small knife and let him live the most unforgettable day of his life. ---------------------------- One Piece's Supreme was a light novel by the author, Ice Crush Kitten. The general plot of the novel was: Milo, who had transmigrated to One Piece's world, realized that he could cultivate the telekinesis of a full-time hunter. " This fruit's ability is not bad. I like it very much." " How do I get it?" Milo knocked on the materialized black book," One Piece's Supreme." …。 ---------------------------- One Piece: All the Villains was a light novel by the author, Little Hymie. The general plot of the novel was: McCann, who had transmigrated to the world of One Piece, obtained the Golden Finger Pirate Ship that summoned the villains of all worlds, the Black Pearl; the vice-captain and voyager, Héctor Barbosa; the ship's cook, Hannibal Lecter; his personal assistant, Harry Quinn; and the boatman, Jigsaw. Moriarty, the archaeologist; Nanase, the shark king, the boatswain; Jason, the captain's guard; Fran, the crazy doctor on the ship; In short, it was a party for the villains. ---------------------------- One Piece's Domineering Power was a light novel by the author, Nian Niansheng. The general plot of the novel was: Smoggy: I've rarely taken anyone's word in my life, Vic's one. Karp: I don't regret bringing Vic to the Navy. Vic left the Navy. The Navy let him down. He didn't do anything wrong. Zefa: " I'm not exaggerating. Vic is the most talented young man I've ever seen. It's a pity, Mihawk: I don't know how Vic cultivated. He's younger than me, and his sword cultivation isn't weaker than mine. He also has such a powerful Demon Fruit ability. I'm not as good as him." Kaido: Only dominance can rule over everything. This is the truth that Vic taught me. Red hair: Vic's color has already surpassed his blue. "Vic, I'm back from Lafdrue, I know the truth…Vic, the war is about to begin…" ---------------------------- " A Monster's Journey Begins with One Piece " was a light novel by the author, Follower 1. The general plot of the novel was: After being reborn in the world of pirates, Mino appeared in the waters of the New World's Aunty Pirates. Fortunately, Mino did not need to hand over his soul. As for the reason, it was because he had transmigrated to a rare race, and he had three eyes on his head! Looking at the strange eyes in the mirror, Mi Nuo sighed. Rather than becoming an endangered race, she might as well become a new race. I want to be a monster and not a human anymore! He had just released a new book, and it was called 'Bergerpunk Forges Ninja Technology.' ---------------------------- " Legend of the Murloc Pirates " was a light novel written by the author, Diesel-Powered Chicken. The general plot of the novel was: Fifty thousand meters deep in the dark and oppressive Dead Sea, a pair of vertical pupils slowly opened again. He was once the most powerful Sea Arowana in history, and the world government was terrified of him. He used to be the vice-captain of the Locks Pirates, which the navy feared. He was once the most terrifying executioner in the eyes of pirates and evil forces. He had once single-handedly made the weak Fishmen Island a world power. In the long years, this sea without memories had long forgotten him. He was the former king of Fishmen Island, Moang Seale! When the soul from Earth awakened this powerful corpse. How would he write another legend on this sea? ---------------------------- One Piece: Captain Locks is a light novel by author Gu Yi. The general plot of this novel is: This book was also known as One Piece's Fruit of Manipulation, One Piece's Crew Fruit System, and One Piece's Chaotic Era. It recorded the history of that period." Before the era of chaos, no one had ever thought that a pirate group could actually overthrow the government. No one in the entire world had ever thought that the Devil's Fruit was no longer the only one in that era." ---------------------------- " The Descent of One Piece's Demon God " was a light novel by the author, River Shore. The general plot of this novel was: The protagonist woke up to find that he had become Meliodas and had transmigrated to the world of One Piece. The person sitting opposite him was actually Eam, the most mysterious existence of One Piece. The protagonist was confused… ---------------------------- " The Great Pirate Krokdal " was a light novel written by the author, the leader of the rice worms. The general plot of this novel was: 1. This is a Doujinshi novel about One Piece Sand Crocodile. 2. It was written very early. If the plot can't keep up, don't comment. 3. Single world, no comics, with the nature of one's imagination. Finished. 4. The new book," Defiant God's Space," was officially released. 5. Official group number: 257938047. ---------------------------- One Piece: Crick Wants to Be the Strongest in the World was a light novel by author Don't Call Me Jing Jing. The general plot of this novel was: "Captain! Look! There's a fool from the west. He's sitting in a coffin and rowing a boat with a knife!" "Really? Where is it?" " Hahahahaha…" Looking in the direction pointed by the lookout, the crew on the Dreadnaught Battleship Saber burst into laughter. Klick, who had transmigrated to One Piece's world not long ago, came back to his senses and looked at the person whom everyone was laughing at. Black short hair, eagle-like sharp yellow eyes…Wearing a black trench coat, white trousers, and a black top hat…The iconic pitch-black cross-shaped longsword was inserted into the sea with half of its body. It looked in his direction expressionlessly. Eagle Eye! Krick broke out in cold sweat. What should he do? Anxious! Waiting online! How could he pretend that he didn't see Hawkeye rowing the boat with the black blade? At this moment, the Killing Intent System had successfully upgraded! Crick won three chances to draw the lottery!

Madara's powers would be both a boon and a bane in the One Piece fanfiction world. His ability to summon the Susanoo could be a fearsome sight on the Grand Line. It could be as intimidating as some of the giant sea kings or even the ancient weapons. On the other hand, his powers might not be fully understood by the characters in One Piece. For instance, the concept of chakra is different from Haki and Devil Fruits. But if written well, his presence could add a whole new layer of excitement and mystery to the story. Maybe he could form alliances with some of the Yonko or even oppose them, depending on the plot of the fanfiction.

He might fit in as a sort of super - strong outsider. Vegeta could be on a quest for his own kind of 'One Piece', which could be something related to power or a way to return to his own universe. His Saiyan abilities would make him a force to be reckoned with. For example, his ability to transform into Super Saiyan forms would be like a new level of power that no one in the One Piece world has seen before. He might start out as an antagonist but could end up teaming up with the Straw Hats if they had a common enemy.

Sanji would go all out in cooking the most nutritious and delicious meals for Usopp to help him recover. He might also be a bit overprotective, not allowing anyone to disturb Usopp while he's eating. Chopper would be in full - on doctor mode. He'd be constantly checking Usopp's vital signs, giving him medicine, and trying to figure out the cause of the sickness. Robin would be quietly researching any possible cures or causes, using her knowledge of history and ancient texts.

An 'oc' can fit into the Disney universe by having a backstory that ties into the existing lore. For instance, if it's a 'Beauty and the Beast' fanfiction, the 'oc' could be from a neighboring village that has always had a strange connection to the enchanted castle. This connection can be explored through interactions with Belle and the Beast.