Maybe Naruto is revealed to be Bayonetta's long - lost brother. And they team up to fight a common enemy. This enemy could be a powerful demon or some sort of dark force that is threatening both their worlds. Their combined powers, Naruto's ninjutsu and Bayonetta's magic and combat skills, would make for some exciting battle scenes in the fanfiction.
One possible plotline could be that Naruto somehow gets transported to the world of Bayonetta. And as her brother, he has to learn about her world while also trying to find a way back to his own. Along the way, he might use his ninja skills in combat situations in Bayonetta's world.
A possible plotline could be set in an alternate universe where Naruto and Bayonetta grow up together as siblings. They have different upbringings, with Naruto having his ninja training in Konoha and Bayonetta learning her witchcraft. But when a crisis emerges that affects both their worlds, they have to put aside their differences and work together. Naruto could bring his values of friendship and perseverance, while Bayonetta could contribute her elegance and powerful combat abilities to face the challenges.
One possible plotline could be that Naruto's brother has been living in secret all this time. Maybe he was sent away for his own safety when they were young. He could return to the village and at first Naruto is suspicious, but as they get to know each other, they form a strong bond and fight together against the common enemies of the village.
In a 'Naruto brother of Madara fanfiction', a plotline might involve Naruto using his connection to Madara to bridge the gap between the Uchiha clan and the rest of the village. Since he has a different upbringing compared to Madara, he could bring a fresh perspective to the Uchiha's grievances. Another interesting plotline could be that Naruto discovers he has some latent Uchiha abilities due to his relation to Madara. This could lead to him training in new ways and developing powers that are a blend of his Uzumaki and Uchiha heritage. There could also be a plot where Madara's past actions are re - evaluated in light of his relation to Naruto. Maybe there were reasons behind his actions that Naruto uncovers, which could lead to a redemption arc for Madara.
One possible plotline could be Naruto being transported to the Fairy Tail world and finding out he has a sister in Erza. They then team up to fight common enemies. Another could be that they discover their connection later in life and have to deal with the shock of having a long - lost sibling from another world.
One possible plotline could be that they discover their relation and then Naruto becomes overprotective of Sakura. Another could be that they have to face some family secrets together. Maybe there's a hidden power in their family that only they can unlock as siblings.
One possible plotline could be that the older brother was thought to be dead but actually survived and returns to protect Naruto from the shadows. He might have some special powers or knowledge that he uses to keep Naruto safe without revealing his identity at first.
In this fanfiction, Naruto could be involved in political situations because of his relation to Hashirama. The village might expect him to take on certain leadership roles or diplomatic missions. For instance, he could be sent to negotiate with other villages. He might also have to deal with the internal politics of Konoha, where some might try to use his connection to Hashirama for their own gain. Along the way, Naruto would grow not just as a ninja, but also as a person who has to navigate complex relationships and power dynamics.
Maybe the Hidden Leaf Village is haunted by a slasher who seems to be immune to normal ninja attacks. Naruto would have to not only rely on his physical abilities but also his wits and the help of his friends. He might discover that the slasher has a connection to an ancient and dark ninja art that was long forgotten. This could lead to a race against time to stop the slasher before more lives are lost in the village.
One possible plotline could be that Naruto somehow enters the Bleach universe and becomes a student of Urahara. He learns Urahara's unique skills and knowledge, like how to use his special inventions. This could lead to Naruto using some of Bleach - style powers in the Naruto world when he returns, causing a stir among his friends and foes alike.
Perhaps Naruto becomes homeless due to some sort of misunderstanding or false accusation in the village. He then has to prove his innocence while living on the streets. He could start doing small acts of kindness for the villagers from the shadows, which eventually leads to the truth coming out and him being welcomed back home.
Well, one possible plotline could be that Naruto, being a fan of Megatron, tries to incorporate some of Megatron's leadership and combat strategies into his ninja battles. Maybe he starts using more aggressive and direct combat styles inspired by Megatron's fearless approach in battle. Another idea is that Naruto discovers an ancient ninja artifact that has a connection to Megatron's world, and this leads him on a journey to understand the similarities between his world and that of the Transformers. It could also be that Naruto, in his dreams, meets Megatron and they exchange ideas about power and leadership, which then influence Naruto's decisions in the real ninja world.