The main characters are Arlong and Luffy. Arlong is known for his tyranny over Nami's village and his general dislike for humans. Luffy, as the captain of the Straw Hat Pirates, is all about making friends and having adventures. In this fanfiction, their personalities will clash and blend in unique ways. It's likely that the story will explore how their different natures interact and how they might change as a result of their encounters with each other.
One possible plotline could be Arlong and Luffy having to team up against a common enemy in a very unlikely alliance. This would force them to put aside their differences and learn to work together.
Nami would be a great character to include as she has a deep - rooted history with Arlong. Their interactions can add a lot of drama and emotion to the story. Luffy is also a good choice as he is the main protagonist and his values of freedom and justice would contrast sharply with Arlong's tyranny.
One idea could be exploring Arlong's past before he became so cruel. Maybe there was an event that hardened his heart. Another could be a fanfic where Arlong has a change of heart and tries to make amends for his actions. For example, he could start helping the very people he once oppressed.
I think Shanks would have an interesting reaction. He has known Luffy since he was a kid. Seeing Luffy reach Gear 5, he would probably be proud but also a bit cautious. He might think about how far Luffy has come and also wonder what challenges this new power will bring for Luffy and the world at large.
Arlong's back story starts with the general situation of fish - men in the One Piece world. Fish - men are generally stronger than humans underwater. However, they are not treated equally on land. Arlong witnessed the unfair treatment towards his fellow fish - men. He formed his own group and started to act in a rather extreme way. He took over Nami's village as a form of revenge against the humans. Nami, a talented navigator, was forced to be part of his crew in a sense, drawing maps for him in the hope of one day buying back her village's freedom. His actions were a result of the long - standing discrimination that fish - men had endured, but his methods were definitely not the right way to solve the problem.
Yes, there are likely non - adult fanfictions focusing on their relationship. These might explore their interactions from a more platonic or story - driven perspective. For example, a story could be about how Nami tries to understand Arlong's motives in a more complex way, without any romantic or inappropriate undertones.
Luffy would probably be super excited. He's always been on this big adventure, and meeting his dad would be like a new milestone. He might jump up and down and start asking a million questions right away, like what his dad has been doing all this time and if he has any cool stories from his own adventures.
It could also be that Naruto has unspoken feelings for Hinata. So when Kiba steals from her, it's not just about the act of stealing, but also a sort of territorial thing. He feels the need to defend her honor, like a knight in shining armor.