The story could revolve around her journey to find a way back to her own world. Along the way, she meets various Final Fantasy characters. She might team up with Cloud from Final Fantasy VII, and together they face off against a common enemy. Their different fighting styles and personalities would make for an interesting dynamic.
In terms of the fanfiction's setting, it could be set in a hybrid world that combines elements of Naruto's Hidden Villages and Final Fantasy's kingdoms. The political intrigue in such a world would be fascinating. Fem Naruto could get involved in power struggles between different factions, using her wits and powers to navigate through the complex situations.
One interesting aspect could be the character design. A female Naruto in a Final Fantasy world might have unique abilities that combine Naruto's ninja skills with Final Fantasy magic. For example, she could use chakra - based attacks along with summoning spells like in Final Fantasy. This would create a really cool and dynamic fighting style.
A cool crossover might involve the jutsu in Naruto being combined with the spells in Final Fantasy 14. Picture Sasuke using a spell like Blizzard III from Final Fantasy 14, but with his own Uchiha - style twist. Also, the ninja villages in Naruto could be compared to the city - states in Final Fantasy 14. The fanfiction could explore how the politics and power dynamics of both worlds interact when characters from each are forced to cooperate. Maybe the Hidden Leaf Village and Limsa Lominsa form an alliance to fight a common enemy that threatens both their existences.
One good crossover could be a story where Naruto characters gain the power of the l'Cie from Final Fantasy 13. For example, Naruto could be a l'Cie with a focus on his wind - based jutsu, making it even more powerful. Another idea is a plot where the ninja world is in danger and the characters from Final Fantasy 13 come to help, bringing their unique magic and technology. It could also be interesting to see how the summons in Naruto compare to the Eidolons in Final Fantasy 13.
One interesting crossover could be the characters from Naruto using the Materia from Final Fantasy 7. For example, Naruto with the Fire Materia could enhance his Rasengan with fire elemental powers. It would be a really cool visual to see.
Don't forget about the world - building. Describe how the two worlds blend together. Are there new locations that are a mix of Naruto and Final Fantasy elements? How do the cultures interact? By paying attention to these details, you can create a really interesting and immersive fem Naruto Final Fantasy fanfiction.
A crossover could involve the ninjas from Naruto's world being intrigued by the magic in Final Fantasy 7. Gaara's sand powers could be compared to some of the earth - based magic in FF7. For example, his sand might interact in interesting ways with spells like Quake. In a fanfiction, they could all participate in a tournament where ninjas and FF7 characters show off their skills, and Naruto and Gaara have to adapt their fighting to the different rules of the FF7 universe.
A crossover might involve the storylines. Picture the ninja world of Naruto facing a threat similar to the fal'Cie in Final Fantasy XIII. The shinobi could team up with the characters from FF XIII to fight this common enemy. The different cultures and power systems would create a really engaging and unique story.
In some Naruto x Final Fantasy fanfiction, the summons in Naruto could be related to Final Fantasy summons. Like the toads in Naruto could have a connection to a similar creature from Final Fantasy. This would create unique interactions between the two universes.
Some cool crossovers might include Naruto's summoning jutsu being used in the world of Final Fantasy X - 2. He could summon giant toads or snakes, which would be a strange sight in Spira. The Al Bhed language from Final Fantasy X - 2 could be something Naruto characters have to learn. And perhaps the Farplane in Final Fantasy X - 2 could have a connection to the afterlife in the Naruto universe. This could lead to some really deep and emotional storylines where characters from both worlds interact with the concept of death and the afterlife.
One creative crossover could be Naruto using his ninja skills in the Jetsons' futuristic world. He might use his shadow clone jutsu to help Mr. Jetson with his work at Spacely Sprockets. Another could be Astro, the Jetsons' dog, learning some basic ninja moves from Naruto like how to run stealthily.
In a fanfiction, perhaps some of the Hotel Transylvania characters could have chakra. Mavis, for example, could discover she has a special type of chakra that gives her the ability to control bats in a new way. She could then go on a journey to the Naruto world to learn more about chakra and meet characters like Kakashi who could teach her about different chakra natures.