In fanfiction, their relationships are sometimes explored through shared battles. For instance, they might all fight together against a common enemy, like a powerful navy fleet. During these battles, the trust between Ace, Sabo, Luffy, and the members of Whitebeard's crew is emphasized. The relationships are also shown through quieter moments, like when they are all on the ship sharing stories and dreams, which helps to strengthen the bond between them all.
Ace's relationship with Whitebeard is already established, but it could grow to be more of a father - son type relationship. Luffy would be in awe of Whitebeard and his crew, and his relationships with everyone would be based on his infectious enthusiasm. Sabo, being the more rational one, would study Whitebeard's leadership style and learn from it. As for the relationship between the three brothers, they would support each other during battles and share their dreams and experiences with the rest of the crew, which would in turn strengthen their bonds with the Whitebeard pirates.
Their relationships would likely develop in a very positive way. Ace already has a connection with Whitebeard. When Sabo and Luffy join, they would be welcomed into the family - like atmosphere of Whitebeard's crew. Luffy, with his infectious enthusiasm, would quickly make friends with the other crew members. Sabo, being more serious - minded, would earn respect for his skills. Ace would act as a sort of bridge between them and the rest of the crew, and over time, they would all become closer, sharing their dreams and fighting side by side.
Well, in fanfiction, Luffy's bond with Ace and Sabo is unbreakable. They grew up together and share a lot of memories. When it comes to the Marines, they represent the 'order' that Luffy and his brothers are sort of defying as pirates. Some fanfictions might show a young Marine recruit who has a change of heart after seeing the strong bond between Luffy, Ace, and Sabo. He starts to question whether the Marines are always in the right. Usually, though, the Marines are there to create conflict for the trio.
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.
A plot could revolve around a tournament on an island. Ace, Sabo, Luffy, and members of Whitebeard's crew participate. The prize is a powerful devil fruit. Each character has their own reasons for wanting it. As the tournament progresses, old rivalries are rekindled, new friendships are formed, and they all discover more about themselves and their place in the pirate world.
I really like the fanfictions that involve Ace, Whitebeard and Sabo. They are such interesting characters. In many of these fanfictions, the relationship between them is explored in great depth. For example, how Sabo copes with having Ace as his 'brother' again after thinking he was dead. And Whitebeard's role as a father figure to them adds another layer of complexity and warmth to the stories.
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.
Well, perhaps in the fanfic, there could be a plot where Whitebeard decides to train Ace, Sabo, and Luffy in a new form of combat. This training could lead to them developing new powers or techniques. Also, they might get involved in a political intrigue within the pirate world while associated with Whitebeard. Like, they have to deal with other pirate lords who are jealous of Whitebeard's influence and try to undermine him by targeting the three brothers.
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.