The fanfic might center around the relationship between Naruto and the fem Kyuubi. Since she is the first chakra user, she could teach Naruto some ancient and powerful chakra techniques. This could lead to Naruto becoming even stronger and more respected in the ninja world. And of course, there could be a bit of a romantic sub - plot as they grow closer.
Naruto would likely develop more control over his chakra with the help of the fem Kyuubi. He might become more mature in his approach to battles and life in general. The fem Kyuubi, on the other hand, could develop more human - like emotions as she spends time with Naruto.
Perhaps the plot could revolve around the female Kyuubi teaching Naruto about the secrets of the first chakra. This could lead to Naruto unlocking new powers and abilities that are different from his normal Sage Mode or other forms. Their relationship could also take on a romantic angle, with them growing closer as they train together and share their experiences.
The fem Kyuubi could have more delicate features compared to the traditional, more menacing Kyuubi. For example, her eyes might be more almond - shaped and have a softer glow. Her fur could also be a different shade, perhaps a lighter red or with some kind of pattern on it.
One possible plot could be that the female werewolf is an outcast in her own world. Naruto, with his kind heart, befriends her. Meanwhile, the fem Kyuubi has a connection to Naruto due to the Kyuubi within him. They all come together when a common enemy threatens the Hidden Leaf. The werewolf could use her unique abilities, like enhanced strength and speed, to help Naruto in battles, while the fem Kyuubi might offer her own brand of power, perhaps related to chakra manipulation. As they fight side by side, a deep bond forms between Naruto and the two female characters.
The plot could involve Naruto finding himself in a world dominated by kunoichi. With the addition of a female Kyuubi, perhaps she becomes an ally or a love interest. Naruto might have to navigate this new world while dealing with the unique powers and personalities of the kunoichi, all while the female Kyuubi's presence adds an extra layer of mystery and power dynamics.
The plot could involve Naruto and the female Kyuubi being transported to the Killzone universe. Maybe they'd have to team up with the Killzone characters to fight a common enemy. The female Kyuubi's powers would surely be a great asset in the war - torn Killzone world.
The plot could involve Naruto using his 'godlike' powers to save the fem kyuubi from a powerful threat. Maybe there's an evil force that wants to capture or harm her, and Naruto steps in.
Well, it could be about Naruto having a unique relationship with a female Kyuubi who has been banished. Maybe Naruto tries to find a way to bring her back and in the process, they develop deep emotional bonds. He might face many challenges, like opposition from the village or other powerful forces who don't want the Kyuubi back.
Well, one possible plot could be that the Fem Kyuubi, being constantly mistreated and feared by everyone, teams up with Naruto who also has his own reasons to be angry at the village. They might start by targeting those who have directly wronged them, like some of the shinobi elders who have always seen the Kyuubi as a weapon. Naruto's bond with the Fem Kyuubi could give him new powers or a different perspective on the ninja world. They could use their combined strength to expose the dark secrets of the village and make those in power pay for their misdeeds.
Well, it could be about the cryomancer Naruto using his ice powers in unique ways while interacting with the female Kyuubi. Maybe they team up to fight some common enemies, or there could be a story of them falling in love and trying to overcome the differences between a human - like Naruto and a more mythical being like the fem Kyuubi.