One plot idea could be Hinata developing a unique bond with the Kyuubi's chakra within Naruto. Maybe she discovers a way to communicate with it on a spiritual level and helps Naruto better control it. Another idea is that Hinata's Byakugan has some unexpected interaction with the Kyuubi's power, like being able to see the flow of its chakra in a way no one else can.
There could be a plot where Hinata is involved in a research project about the Kyuubi's power. As she delves deeper, she uncovers secrets about the Kyuubi that not only help Naruto but also change the way the whole village views the power. Or perhaps, in a post - war scenario, Hinata helps Naruto use the Kyuubi's power for peaceful reconstruction, like using it to power new technologies or heal the land that was damaged during the battles.
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 idea could be that the oc is a foreign ninja who comes to Konoha and befriends Hinata. They exchange their different ninja techniques and cultures. For example, the oc could teach Hinata a unique form of water - based jutsu from their homeland.
One plot idea could be a story where Neji, after a near - death experience, realizes his feelings for Hinata are deeper than he thought. They could go on a journey together to train in a secret location, and during this time, their bond deepens as they face challenges and protect each other. Another idea is a time - travel plot where Hinata goes back in time and meets a younger Neji, and they end up changing the future of their clan together.
One plot idea could be that Naruto, with the power of the Kyuubi, has to protect Hinata from a new and powerful enemy. This would show his growth as a shinobi and his love for Hinata. Another idea is that Hinata discovers a new way to help Naruto control the Kyuubi's power, strengthening their bond.
One idea could be a story where the female Kyuubi and Nibi form an unlikely alliance. They could start off as rivals but then realize they have a common enemy and work together. Maybe they meet in a magical forest and at first are hostile towards each other. But as they face challenges like a group of dark spirits trying to capture them, they learn to trust and rely on one another.
One idea could be a story where Kagome and Kagura both end up in a strange, magical realm outside of the Inuyasha world. They have to rely on each other's skills to find a way back. Kagome's spiritual powers and Kagura's combat abilities could be combined in interesting ways.
There could be a story where Kagome and Shippo team up to prank the other members of their group. This light - hearted plot would show their close bond and the mischievous side of their personalities. It could also lead to some funny and heartwarming moments within the group dynamic.
One interesting plot idea could be that Charlie invites Hermione to study dragons in Romania. There, Hermione discovers a new species of dragon that has some unique magical properties. They have to work together to protect the dragon from poachers. Another could be that Hermione helps Charlie set up a dragon - conservation program at Hogwarts. This would involve getting the approval of the school authorities and dealing with the challenges of having dragons on school grounds.
One plot idea could be that the Fem Kyuubi has a special connection with Naruto and Hinata. Maybe she can sense their deepening relationship and decides to use her power to protect them from an upcoming threat in the shinobi world. This could lead to a lot of action-packed scenes as they fight together against the common enemy.
One plot idea could be that Hinata discovers a lost scroll of Jiraiya's that contains a unique and powerful jutsu. She then tries to find a way to return it to him, and along the way, they form an unexpected friendship. Jiraiya could see her determination and offer to train her in some aspects of the jutsu.