Dark Naruto himself is often a very popular character in such fanfiction. His transformation into a darker version of himself brings a whole new level of complexity and power. Dark Kyuubi is also quite popular as it adds an element of danger and mystery. Additionally, characters like Sasuke might also be popular as he could potentially have an interesting dynamic with Dark Naruto, either as an ally or an enemy in the dark - themed story.
In a Dark Naruto and Fem Kyuubi fanfiction, their relationship could be based on mutual respect. Fem Kyuubi might be intrigued by Dark Naruto's power and his different approach compared to the regular Naruto. They could embark on a journey together, during which Dark Naruto learns more about the power of the Kyuubi within him from Fem Kyuubi's perspective, and this new knowledge could change his path in the story.
Fanfiction about 'Dark Naruto, Kyuubi, Memory Seals' can take many forms. One possibility is that the memory seals are tampered with by an outside force. This could be an enemy who wants to unleash the power of the Kyuubi and corrupt Naruto. The 'Dark Naruto' that emerges might have different abilities compared to the regular Naruto. He could be more aggressive and less hesitant to use the Kyuubi's power without the moral restraints that the original Naruto has due to the disrupted memory seals.
One plot idea could be that Dark Naruto forms an alliance with Dark Kyuubi to take over the Hidden Leaf Village. They use their combined dark powers to manipulate the villagers and turn them against each other. Another idea is that they embark on a journey to find a powerful, ancient artifact that can enhance their dark abilities even further. Maybe they face off against the original Naruto and Kyuubi in a final battle of good versus evil.
A possible plot for a Dark Naruto and Fem Kyuubi fanfiction could be that there is a prophecy about them. The prophecy states that they will either bring great destruction or be the saviors of the ninja world. At first, they are unaware of this prophecy. But as they interact, strange things start to happen. Dark Naruto's power becomes more unstable, and Fem Kyuubi tries to help him control it. As they search for the meaning behind these events, they uncover secrets about the ninja world and their own pasts that will ultimately determine their fate.
In fanfiction, the Kyuubi's power is often a catalyst for the creation of Dark Naruto. Memory seals are used to control the Kyuubi's power within Naruto. If these seals are broken or weakened, the Kyuubi's influence can turn Naruto 'dark'. For example, the Kyuubi's chakra might seep into Naruto's mind and distort his thoughts, and the broken memory seals can't prevent this transformation.
In some fanfictions, Dark Naruto and Female Kyuubi end up having a deep emotional connection. Maybe it starts with a battle where they both recognize the loneliness in each other. As the story progresses, they work together to change the fate of the ninja world, and their relationship evolves into something more than just a partnership, with lots of drama and self - discovery along the way.
Dark Naruto might have a more menacing look. His eyes could be a deeper shade of red, like a more intense version of the Kyuubi's eyes. His hair might also be a bit wilder, as if constantly affected by the Kyuubi's chakra.
One key element could be the exploration of Naruto's darker side. In fanfiction, it might show how the power of the Kyuubi affects Naruto not just physically but also mentally, leading to a darker personality. Maybe there are memories that Naruto has to face which are related to the Kyuubi that are full of pain and struggle. Another element could be the relationship between Naruto and the Kyuubi in this darker context. How does he deal with the Kyuubi's influence? And how do these memories shape his character development in this fan - created story?
One idea could be Dark Naruto forming an uneasy alliance with the Kyuubi. They might decide to take on the Hidden Leaf Village together, believing it has wronged Naruto in some way. Naruto could use the Kyuubi's power in a more sinister way than ever before.