Often, it starts with Naruto delving deeper into his connection with Kurama. He might try to understand Kurama better, which in turn makes Kurama more open to him. For example, Naruto could spend time meditating to strengthen their link.
The relationship might also develop due to external factors. For example, if the Hidden Leaf Village is in danger and Naruto has to rely on Kurama's power more than ever. Kurama, seeing Naruto's determination to protect his home, decides to fully cooperate and they end up having a stronger connection as a result of this crisis.
In these fanfics, the relationship can develop through shared experiences. Like when they face a common enemy together inside Naruto's mind. Kurama might start to see Naruto as more than just a vessel, but as a friend or even a son - like figure. He would then be more open with his emotions and offer more support in Naruto's real - life battles.
As Kurama teaches Naruto seals, they develop a sort of teacher - student bond. Naruto respects Kurama's wisdom, and Kurama in turn respects Naruto's determination to learn. This bond might lead to them having more in - depth conversations about the nature of chakra, the history of sealing techniques, and even their own pasts. For example, Kurama might share stories about how certain seals were created in the ancient times and how they were used in battles. Naruto, on the other hand, might tell Kurama about his dreams for the future of the ninja world and how he plans to use these new sealing techniques to bring peace. Through these exchanges, their relationship becomes more complex and multi - faceted.
Often, the story starts with Naruto realizing the potential of a full merge. Then he has to overcome some internal struggles. After the merge, he usually goes on a power - up spree. He might take on stronger enemies that he couldn't face before.
In these fanfictions, at first, the relationship is often strained. With Naruto being evil, he may push Hinata away. But Hinata's love remains constant. As the story progresses, Naruto might start to see Hinata's efforts and slowly warm up to her again, gradually rebuilding their relationship.
It could develop as Naruto spends more time in the mental space where Kurama resides. They start to communicate better, understand each other's motives, and gradually form a deeper connection. This might involve Naruto learning about Kurama's pain and loneliness over the years, which makes Kurama more open to Naruto. As a result, their bond becomes stronger and more symbiotic, allowing them to share power more effectively and support each other in different situations.
Another way is if Naruto starts to teach Kurama about the positive aspects of human nature, like friendship and loyalty. This could make Kurama more empathetic towards humans and strengthen their bond. Kurama, in turn, could share his ancient wisdom with Naruto, making Naruto a wiser ninja.
To develop their relationship in the fanfiction, start with small acts of kindness. Naruto could bring Kurama some food from the human world that he thinks Kurama might like. Then, gradually build up to more significant events. Let them protect each other. For example, when Naruto is in danger, Kurama could use his own power in a new way to save him. And vice versa. Also, introduce some external factors that force them to rely more on each other, like a prophecy that says only their combined efforts can save the ninja world. This would make them realize the importance of their bond even more and deepen their relationship as brothers.
In terms of their relationship development, a female Kurama could bring out a different side of Naruto's personality. She might encourage Naruto to explore his more sensitive and empathetic side. This could lead to Naruto making different decisions in battles and in his relationships with other characters. For instance, he might be more likely to try to understand his enemies' motives rather than just fighting them head - on. Also, their bond could be more of a partnership based on mutual respect and shared emotions rather than just a power - based relationship like it was with the male Kurama at the start.
Often, it starts with suspicion. Naruto is wary of Konan as she is part of the Akatsuki. But as they interact more, they start to see each other's good sides. For example, Konan might see Naruto's determination to protect his friends, and Naruto might see Konan's loyalty to her comrades.