Perhaps the fanfiction's plot involves female Naruto going on a solo mission near a tropical island. She wears a swimsuit under her ninja gear for practical reasons. Once she arrives at the island, she discovers that Kurama has a special connection to an ancient power source there. As she explores in her swimsuit, she has to face various challenges and puzzles, all while relying on Kurama's knowledge and her own ninja skills.
The plot could be that female Naruto is training near a beach. She decides to take a break and put on a swimsuit. Kurama, inside her, is initially grumpy about this break. But then, they notice some strange energy coming from the ocean. They team up, with Naruto in her swimsuit, to investigate. Along the way, they meet new characters who are also intrigued by the strange energy.
In the fanfiction, the plot could revolve around Fem Naruto being part of a swimsuit fashion show in the ninja world. Her Kurama swimsuit is the centerpiece. She has to face off against some rival ninjas who are also models. Along the way, she discovers that there's a conspiracy to disrupt the show, and she uses her ninja skills to stop it and make the show a huge success.
In the fanfiction, there could be a situation where an enemy attacks the beach area where female Naruto and her friends are having a swimsuit party. Female Naruto, in her swimsuit, quickly springs into action. Kurama's power surges through her, and she uses her ninja skills combined with the unique situation of being in beachwear. For example, she might use her swimsuit's fabric as a distraction or a binding tool against the enemy.
One idea could be that Fem Naruto enters a beach volleyball tournament on the Hidden Sand's beach while wearing a Kurama - themed swimsuit. Her unique look attracts a lot of attention and she has to deal with both admiration and jealousy from other competitors.
The plot could involve Naruto using the henge to transform into a swimsuit - clad figure as part of a bet. His friends bet him that he can't stay in a particular henge for a whole day, and the swimsuit henge is what he chooses. Along the way, he has to deal with the embarrassment of being in such a form in public places in the Hidden Leaf Village, like the market or the training grounds.
One possible plot could be that Kurama, through some strange magical or dimensional rift, gets a glimpse into the world where Slade exists. He becomes intrigued by Slade's ruthlessness and combat efficiency. Kurama then starts to influence Naruto in a way that makes him more like Slade in battle, which causes some internal conflict within Naruto as he tries to balance his own values with this new, more aggressive approach.
Well, it could be about Kurama having some sort of connection or interaction with Slad. Maybe Slad is a new character who has the ability to communicate with Kurama in a different way than Naruto. It could involve a quest where Kurama and Slad team up to face a threat that neither could handle alone.
In this kind of fanfiction, one possible plot could be that Naruto discovers a hidden ancient jutsu. With great determination and after many trials, he manages to use this jutsu to break the seal that binds Kurama. Then, Kurama, instead of being hostile as expected, actually thanks Naruto for freeing it. They form an even deeper bond and decide to work together to protect the Hidden Leaf Village from a new and powerful enemy that is approaching.
Well, it could be about a high - tech world where Naruto has a mecha version of Kurama. Maybe the plot involves fighting new and powerful enemies that can only be defeated with the combined strength of Naruto and his mecha Kurama. The fanfic could also explore how Naruto bonds with this mechanical version of Kurama, different from his connection with the original Kurama.
One possible plot could be that Kurama, seeing Naruto in her female form, decides to give her a fox tail as a symbol of their unique bond. This could lead to Naruto having new powers or a deeper connection to the Nine - Tails' chakra. Maybe she can use the tail for balance in battle or even for some kind of new jutsu that involves the tail's movement.
One possible plot could be Naruto and Kurama having to work together on a top - secret ANBU mission. Naruto might have to rely on Kurama's power in a more covert way compared to his usual battles. Maybe they are sent to infiltrate an enemy stronghold where Naruto uses his ninja skills and Kurama's chakra to remain undetected.