One common theme is the exploration of different power systems. Since Naruto has its own set of powers like chakra and jutsus, and One Piece has Devil Fruits and Haki, seeing how characters interact with these different power systems can be a big part of the fanfictions.
There might be. However, it can be a bit tricky to find exactly what you're looking for. Some fanfictions might focus more on the Naruto and Yamato part and just have some One Piece elements thrown in, while others could be more balanced. You should also check the ratings and reviews of the fanfictions to ensure they meet your expectations.
One great 'Ace x Sabo' fanfic is 'Brothers' Bond'. It delves deep into their relationship as brothers, exploring their past and how they support each other in the world of One Piece. It has some really heart - warming moments that stay true to their characters.
A popular fanfic is 'Under the Same Sky: Marco x Ace'. It delves deep into their characters, exploring their individual strengths and how those qualities blend when they are together. It also has some great action scenes and emotional moments that are true to the spirit of One Piece.
Self - discovery is also a theme. The reader character might be on a journey of self - discovery, and Yamato helps in that process. For example, the reader might be trying to find their place in the pirate world or figure out their own strength, and Yamato, with his/her own experiences in the One Piece universe, can offer guidance. And of course, there's the theme of loyalty. The loyalty that Yamato shows to his/her beliefs and how that affects the relationship with the reader is often explored.
Growth is a prevalent theme. As they go through various battles and experiences in the fanfictions, they grow both as individuals and in their relationship. Their understanding of each other and their own abilities develops. Additionally, the theme of brotherhood is strong. They are like brothers in the crew, and this brotherly love is often a central focus in these fanfictions.
In 'One Piece' they are on opposite sides, so in fanfiction, seeing them interact in different scenarios is fascinating. For example, they could be forced to team up against a common enemy. Their different abilities, like Smoker's smoke - based powers and Ace's fire powers, can also lead to some really cool fight scenes and power combinations in the fanfictions.
Adventure is also common. They are pirates after all. Fanfictions might take them on new quests or have them explore uncharted islands together, much like in the original series. For example, they could be searching for a hidden treasure that has a special meaning to their family. It's a way to continue the spirit of adventure that One Piece is known for in a new context.
The popularity also stems from the fact that there are so many unexplored aspects of their relationship in the official story. Fanfiction allows writers to fill in those gaps and create stories that satisfy the fans' curiosity. For example, their early days together or how they would interact in different settings.
Another interesting 'yamato x ace fanfic' is 'Yamato's Encounter with Ace'. This fic starts with Yamato's first encounter with Ace. It explores Yamato's initial impression of Ace and how that changes over time as they interact more. It's a great read for those interested in their relationship development.