Well, perhaps in the fanfiction, Naruto as Mito's brother is sent on a special mission. This mission could be related to an ancient threat that the Uzumaki clan once faced. Along the way, he meets some new characters who are also related to the Uzumaki's past. They team up and Naruto has to learn new jutsu and skills from his heritage to overcome the challenges.
In this 'Naruto brother of Mito Uzumaki' fanfiction, Naruto might be in a situation where he has to deal with the politics within the village due to his relation to Mito. Since Mito was an important figure in the village's history, Naruto could be thrust into a position where he has to use his connection to her to resolve disputes between different clans. He may also have to face some who are jealous of his relation to such an important figure, and he has to prove himself not just as Mito's brother but as a capable ninja on his own terms.
One possible plot could be that Naruto, as Mito's brother, discovers some long - hidden family secrets. Maybe he finds out about a special power that has been passed down in the Uzumaki family but was lost over time. He then embarks on a journey to rediscover this power and use it to protect the village in a new way.
One possible plot could be Naruto discovering his connection to Mito Uzumaki early on. This could lead to him having an easier time controlling the Nine - Tails' chakra as Mito was also a Jinchuriki. He might inherit some of her unique sealing techniques and use them to protect the village in new ways.
One possible plot could be that Naruto time - travels and meets Mito Uzumaki. Mito could sense Naruto's strong chakra similar to Hashirama's. She might mistake him for a descendant of Hashirama at first. Then Naruto could learn about the origin of the Uzumaki clan from her and how they were powerful in sealing techniques. This encounter could also lead to Naruto getting some ancient knowledge about chakra control or sealing that he could use in his own time.
The main antagonists could be a group of rogue ninjas who are after the secrets of the Uzumaki clan. Since Naruto is Mito's brother, they might target him to get to those secrets.
One possible plot could be that through the Edo Tensei jutsu, Mito Uzumaki is brought back to life. She teams up with Naruto. They could face off against an ancient enemy that once threatened the Uzumaki clan. Mito shares her old - world knowledge and skills with Naruto, and together they strive to protect the Hidden Leaf Village from this new threat.
In a 'godlike naruto and mito uzumaki crossover fanfic', the plot might involve Naruto's godlike abilities allowing him to enter a spiritual realm where Mito Uzumaki exists. Mito, being an important figure in the Uzumaki history, could share some long - lost secrets with Naruto. These secrets could be related to the origin of the Uzumaki's special chakra or some powerful sealing jutsu. Then they might return to the real world to use this knowledge against an emerging evil force.
A common plot point is Naruto's unexpected journey to the time when Mito Uzumaki lived. This could be due to a time - travel jutsu gone wrong or a special mission from the future. Another is that Naruto has to face off against enemies that Mito couldn't handle on her own, like powerful ancient demons or rival clans.
I'm not sure specifically as there could be many different interpretations in fanfiction. It might be about Mito Uzumaki and some sort of fury - related situation in the Naruto universe, perhaps her showing great power or facing a difficult challenge.
It could involve Naruto having god - like powers and interacting with Mito Uzumaki in unique ways. Maybe he uses his newfound powers to protect the village in a way that Mito would be proud of, or perhaps they team up across time to face a common enemy.
One idea could be a time - travel plot where Naruto somehow gets sent back in time and meets Mito Uzumaki. They initially have misunderstandings as Naruto's modern ways seem strange to Mito, but gradually they start to understand and fall in love. Another could be a story where Mito is in danger and Naruto, with his heroic nature, saves her and that becomes the start of their relationship.
She might encounter Naruto's hidden fears and help him face them. Maybe she'll discover memories Naruto has forgotten or suppressed.