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.
One interesting storyline could be Mito Uzumaki teaching Naruto some ancient Uzumaki clan jutsus. Since Mito was one of the first Uzumaki in Konoha, she might have knowledge that was lost over time. Naruto, being eager to learn and get stronger, would be a great student for her. Another could be a time - travel story where Naruto somehow goes back in time and meets Mito when she was still young. They could team up to face a common enemy that threatens the Uzumaki clan.
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.
One interesting plot twist could be that when Naruto and Mito time travel, they accidentally change a major event in the Uzumaki clan's history. For example, they prevent the destruction of a powerful Uzumaki artifact that was originally lost. This could then lead to a whole new power dynamic in the Naruto universe, as other villages might try to steal or ally with the Uzumaki clan for this newfound power.
Well, in this fanfiction, it could be that the 'fury' aspect is related to some sort of threat to the village or to Mito herself. Perhaps there are enemies who are trying to take advantage of her connection to the Nine - Tails. This would lead to some intense action scenes where Mito has to use her skills and the power of the Nine - Tails to defend what she holds dear. And it might also show how she interacts with other characters in the face of this danger, like the early Hokages or other important members of the Uzumaki clan.
Perhaps a story where Mito and Kushina train Naruto in some ancient Uzumaki techniques. Naruto is always eager to learn new things and become stronger. Mito could teach him about the more spiritual and sealing aspects of the Uzumaki powers, while Kushina could focus on the combat - related applications of their chakra. This would not only strengthen Naruto but also deepen his connection to his Uzumaki roots.
One plot idea could be a time - traveling story where Naruto gets to meet Kushina and Mito. He could learn about the Uzumaki clan's secrets directly from them. Another idea is a story where Kushina and Mito are brought back to life and they help Naruto in a new and dangerous threat to the Hidden Leaf. Maybe they could teach him some long - lost Uzumaki jutsu.
One idea could be exploring Naruto's deeper connection to the Uzumaki clan's sealing jutsu. Maybe he discovers an ancient Uzumaki scroll that contains a powerful sealing technique that was lost over time. This could lead him on a journey to master it and in the process, he uncovers more about his clan's history and secrets.
One idea could be that Tayuya, who was an enemy before, is now a part of the Uzumaki clan. She and Naruto discover they have a connection through their clan heritage. This could lead to them going on a journey to explore the secrets of the Uzumaki clan together.