Maybe in this fanfiction, Naruto has to hide his true nature from his friends at first. As he was once the Kyuubi, he might be afraid of being rejected. This could lead to some really tense and emotional moments when his friends start to suspect something is different about him.
A great plot idea could be that Naruto, as a Kyuubi - turned - human, has a special connection to the natural world. He can communicate with animals and plants in a way that no one else can. This ability helps him in battles and also in his journey to understand his new identity. He could use this connection to uncover secrets about the ninja world that were previously unknown.
One plot idea could be Naruto gradually learning to fully control the Kyuubi's power in a more conscious way. He could discover new abilities that are a blend of his own ninja skills and the Kyuubi's raw power. For example, he might be able to use the Kyuubi's chakra to create illusions that are more powerful and realistic than normal genjutsu.
One idea could be that the Kyuubi in human form becomes Naruto's mentor in secret. He teaches Naruto some ancient and powerful jutsu that were lost over time. This could give Naruto an edge in battles and also deepen his connection with the Kyuubi.
One idea could be exploring the bond between Naruto and the Kyuubi in a new way. For example, they could have a shared dream where they are in a strange, alternate world and have to work together to find a way back. Another plot could involve Naruto using the Kyuubi's power to save a village from a new, powerful enemy that no one else can defeat. And a third could be about the Kyuubi revealing a long - lost secret about Naruto's family that changes his perspective on his own powers.
In 'FNAF Turned Human Fanfiction', a great plot idea could be the human - turned - animatronics trying to find a way back to their original forms. They could face challenges like discrimination from humans who remember them as terrifying animatronics. Also, their new physical forms might have some special abilities or weaknesses that add to the story.
One idea could be a scientist who is experimenting on artificial intelligence and accidentally gets his own consciousness transferred into a robotic body. He then has to deal with the new limitations and capabilities of the robotic form while trying to find a way to reverse the process.
Maybe in the fanfiction, the Kyuubi has a soft spot for Hinata. Since Hinata is always so kind - hearted and gentle, the Kyuubi starts to protect her in its own way. This could create some interesting situations, like when Naruto is in danger, the Kyuubi takes over not just to save Naruto but also because it doesn't want Hinata to be sad. It would be a different take on the relationship between the three.
One plot idea could be that Naruto and Kyuubi have to work together to stop an ancient evil that is threatening the ninja world. This would require them to fully trust each other and combine their powers in new and unique ways.
One idea could be Naruto exploring the ancient powers of the Kyuubi that were long forgotten. He could discover hidden techniques that only the Kyuubi knew in its long existence.
Perhaps a plot where the female Kyuubi has to take on a human form to protect Naruto from a new, powerful enemy. In the process, they develop feelings for each other while fighting side by side.
Another plot could involve the Kyuubi having a more sentient and family - like relationship with Naruto's family. It could communicate with them in dreams and offer advice or warnings. For example, it might warn them about upcoming threats to the village that Naruto alone might not be able to handle. This would create a unique dynamic where the family has to work with the Kyuubi for the greater good.