A plot could revolve around a dream that Ace had before he died. Sabo discovers a clue about it in Marinford. He then teams up with Luffy to fulfill this dream on Ace's behalf. This journey could involve them having to face the remnants of the old marine forces that are still bitter about the events at Marinford. Along the way, they meet new allies who are inspired by their cause and they grow stronger together as they strive towards this future - a future that Ace might have envisioned for them.
One possible plot could be that in the future, Luffy, still driven by his dream of becoming the Pirate King, decides to return to Marinford. Ace and Sabo, who are also with him, have their own reasons for going back. Maybe they want to set things right after the chaos that occurred there before. Luffy could be aiming to make a statement that the new generation of pirates is different and stronger. They might face old enemies or find some sort of hidden treasure or knowledge that was left behind during the previous battles.
In the fanfiction, their relationships can be delved into through flashbacks. Remembering their time together before the events at Marinford, like their childhood days. As they return to Marinford in the future, they might have different reactions based on their relationships. Luffy might be more impulsive due to his emotional connection with the place where Ace died. Sabo, being more level - headed, tries to keep Luffy in check while also sharing his own feelings. They can have deep conversations about their future plans and how their relationships will support or change those plans.
Well, one possible future for them in Marine fanfiction could be that they form a special unit. Ace with his fire power, Luffy with his rubber abilities and Sabo with his skills would be a formidable team. They could be sent on special missions to deal with the toughest pirates. This way, they are still following their dreams of adventure while being part of the Marines.
Perhaps in this fanfiction, Ace, Luffy and Sabo will make Marineford a place where pirates and marines can live in harmony. They could set up some rules that both sides can abide by.
The idea of Ace, Luffy, and Sabo in the Marines is quite interesting. They could use their bonds to make the Marines a more family - like organization. Their unique abilities would also give them an edge. For instance, Luffy's stretching powers could be used in creative ways during rescue missions or combat.
In this fanfiction, Ace, Luffy and Sabo could have a future in Marineford that is full of hope. Maybe they work together to change the perception of pirates in that place. Ace could use his fire power to protect the weak, Luffy with his unwavering will continues to inspire others, and Sabo with his intelligence devises plans to make Marineford a more inclusive place for both pirates and marines.
One possible plot could be a grand adventure where they team up to take on a powerful enemy that threatens the safety of their hometown. They could use their combined skills and the strong bond they share to overcome challenges.
In some fanfictions, character corruption can be a factor. The author might decide to corrupt the pure relationships in the original story. So Ace and Sabo are written as hating Luffy because they are influenced by some external dark force or bad ideology within the fan - created universe.
Well, perhaps the fanfic could be about how Ace, Sabo, and Luffy's different personalities interact with the Whitebeard pirates. Luffy's carefree nature might bring some chaos and fun to the crew. Ace's loyalty and strength could earn him a special place, and Sabo's intelligence could be used to solve some tricky situations that the crew gets into while sailing under Whitebeard.
One possibility is that they would first be confused by each other's strange abilities. Naruto with his jutsus, and Luffy and Sabo with their Devil Fruit powers. But then they might find common ground in their strong sense of loyalty and friendship. They could team up to fight against a common enemy, perhaps some powerful pirates or shinobi who are causing chaos in both their worlds.
One great 'Ace Sabo Luffy Fanfiction' is 'The Brothers' Bond'. It beautifully explores their relationship, showing how they support each other through various challenges. Another one is 'Sabo's Return'. It focuses on Sabo coming back into Luffy and Ace's lives and how they all readjust. There's also 'Ace and Luffy's Adventure', which takes the three on a fictional journey filled with action and heartwarming moments.