Let's imagine Itachi Uchiha in love with a fellow Uchiha. They grew up together, trained together. Their love was based on a deep understanding of each other's pain and power. But when the Uchiha clan's fate was at stake, Itachi had to make difficult choices. His love for her was strong, but his loyalty to the village made him do things that seemed to shatter their relationship. In the end, his love remained in his heart, a hidden and painful memory.
Once upon a time, Madara Uchiha, the powerful and brooding shinobi, met a young kunoichi named Akari. She was fearless and kind. Their eyes met during a village festival. Madara was immediately drawn to her unique chakra. At first, he tried to resist his feelings, believing love was a weakness. But Akari's gentle nature slowly broke down his walls. They began to meet secretly in the forest, sharing stories of their pasts and dreams for the future.
One great 'Naruto and Madara Uchiha' fanfiction is 'The Redemption of Madara'. It offers a unique take on how Madara could have been redeemed in the Naruto universe. It has a great plot that keeps you hooked from start to finish.
Another good one is 'Itachi Meets the Avengers'. Here, Itachi's calm and strategic mind makes for some amazing interactions with the Avengers. His abilities seem out of this world to the heroes at first, but they soon realize how useful he can be in battles against powerful foes like Thanos.
Madara would have to adapt to the different threats in RWBY, mainly the Grimm. In his world, he was used to fighting other shinobi and clans. The Grimm are a whole new type of enemy. However, his Sharingan would give him an advantage in detecting their movements. He might also try to find a way to use the Grimm's negative energy, similar to how he used negative emotions in his own world to fuel his power.
A plot could be that Madara meets a female ninja who has a unique ability. He is initially drawn to her power but soon discovers her kind heart. They start a relationship. However, his ambition to change the ninja world causes friction. She doesn't fully support his extreme methods. As he delves deeper into his plans, she becomes a target of those who oppose Madara. In the end, he has to choose between his love for her and his grand vision for the world.
I would recommend 'Madara Uchiha x Reader: The Bond'. It shows a unique bond between the reader and Madara that develops over time. The story has great character development for both the reader character and Madara. 'Love in the Time of Shinobi' is also a good fanfiction. It's set during a time of great turmoil in the Naruto world and shows how the relationship between the reader and Madara blossoms despite all the chaos. 'The Uchiha's Heart' is a fanfiction that focuses on how Madara opens up his heart to the reader, which is a really fascinating concept.
I'm not entirely sure if there is a specific fanfiction with Naruto's grandfather being Madara Uchiha. But in the realm of fanfiction, anything is possible. Writers might be intrigued by the idea of mixing Naruto's story with the power and history of Madara Uchiha in such a way. It could lead to some really interesting plot developments, like how Naruto's character might be different growing up with such a powerful and infamous figure as his grandfather in the backstory of the fan - created world.
Yes, there might be such fanfictions out there. The Percy Jackson series and the Naruto world with Madara Uchiha are both quite popular, and fans often like to cross over different universes in fanfiction. It could be really interesting to see how Percy Jackson, with his own set of powers and personality from the Greek mythology - based world, would react to or be a fan of the powerful and complex Madara Uchiha from the Naruto universe.