In a fanfiction where Luffy meets Dragon, it could be an emotional moment. Luffy might be shocked to learn that Dragon is his father. Dragon could impart some deep wisdom or a special mission to Luffy. Maybe he would reveal secrets about Luffy's past or the world that Luffy didn't know before. It could also lead to Luffy having a new sense of purpose in his journey to become the Pirate King.
In a fanfiction where Luffy meets Roger, it could be an amazing encounter. Roger might see in Luffy the same spirit of adventure and freedom that he had. He could pass on some hidden knowledge about the One Piece or give Luffy a cryptic hint about the true nature of the Grand Line. This meeting could also inspire Luffy even more, fueling his determination to become the Pirate King. It would be a moment full of emotion and significance for both characters and for the entire One Piece universe.
One popular type of 'One Piece' fanfiction involving Luffy and Dragon might be about their eventual reunion. Since Dragon is Luffy's father, many fans like to imagine the moment when they meet again. In some fanfictions, Dragon could be secretly guiding Luffy's journey without him knowing. This adds an interesting layer of mystery to Luffy's adventures as he is unknowingly following a path his father has some influence over.
At first, their relationship might be a bit tense. Luffy is a carefree pirate, while Dragon is a serious revolutionary. But as they start to talk, they could find common ground in their desire to fight against injustice. Luffy's simple and direct approach to righting wrongs might earn Dragon's respect, and their relationship could gradually turn into one of mutual admiration.
A common theme is the exploration of their family relationship. Given that in the original series, their connection isn't delved into much, fanfiction writers often fill this gap. They might write about how Dragon feels about Luffy's growth as a pirate, whether he's proud or worried.
In a fanfiction scenario where Luffy meets Whitebeard, it could be a really epic encounter. Luffy, being the carefree and determined pirate he is, might immediately show his respect for Whitebeard as a great pirate. Whitebeard, on the other hand, would probably be intrigued by Luffy's unwavering spirit. They could end up sharing stories about their adventures at sea, and perhaps Whitebeard would offer some words of wisdom to Luffy. Maybe they would even team up briefly to take on a common enemy, like some other powerful pirate crew that threatened the peace of the Grand Line.
Perhaps Luffy and his crew land on an island that is being used as a base by Dragon's revolutionary army. Luffy, being his curious self, starts exploring and eventually meets Dragon. They could have a conversation about their different but somewhat similar goals. Luffy's goal of finding the One Piece and becoming the Pirate King, and Dragon's goal of overthrowing the corrupt world government. This meeting could lead to an alliance of sorts, with Luffy's crew and Dragon's army working together on a common cause for a short time.
The meeting of Luffy and Dragon in a fanfiction has great significance. For one, it could finally give Luffy some answers about his family background that he's been mostly in the dark about. It might also lead to a new alliance or at least a better understanding between the pirates and the revolutionaries. Luffy could gain new allies from Dragon's side, which would be very helpful in his fight against the powerful enemies in the One Piece world. Moreover, it could inspire Luffy to think more about the future of the world and not just his own pursuit of the One Piece.
In the fanfiction, Luffy might show Shanks how much he has grown. He could display his new Haki abilities and his stronger crew. Shanks would be proud of Luffy's progress.
In some fanfictions, when Luffy meets his dad, there could be an emotional moment. Luffy might be surprised at first. His dad could give him some advice on his journey, like how to better face the powerful enemies in the New World. And maybe he'll share some secrets about Luffy's family history that he didn't know before.