What are some interesting plot ideas in 'immortal naruto avatar fanfiction'?

In a naruto x avatar fanfiction, there could be a scenario where the Akatsuki from Naruto's world teams up with some of the villains from the Avatar world. This would force Naruto and the Avatar (whichever one it may be) to put aside their differences and form an alliance with other characters from both worlds to stop this powerful and evil coalition.

Perhaps the nine - tailed fox in Naruto and the Avatar state could have some sort of connection. In the fanfiction, the two powers could interact in unexpected ways. For example, when Naruto enters his nine - tailed fox mode, Aang's Avatar state could be affected, or vice versa. They might have to learn to control these interactions to save both their worlds from a dark force that wants to use this power connection for evil.

Well, a great plot for 'naruto crimson avatar fanfiction' could be centered around a tournament. Naruto and his friends enter a tournament where they have to use their new Crimson Avatar powers. But there's a catch - the tournament is being secretly manipulated by an old enemy who wants to steal these powers for themselves. The characters must not only compete but also figure out the enemy's plot and stop them.

One possible plot could be that Naruto, with his newfound immortality, somehow gets transported to the Avatar world. He could meet Aang and learn about bending. Naruto's chakra control might help him quickly adapt to bending techniques. He could then team up with Aang to fight against a common enemy, like an ancient dark spirit that threatens both worlds.

A really interesting plot would be if the Nine - Tailed Fox in Naruto had some sort of connection to an ancient and powerful spirit in the Avatar world. The Avatar and Naruto would have to figure out this connection and use it to either control or understand the power of the Nine - Tailed Fox better. This would involve a lot of exploration of both worlds' mythologies and powers, and also some great character interactions as Naruto and the Avatar learn from each other.

Another plot could be that Naruto is mistaken for an Avatar in the Avatar world. As he tries to clear up the misunderstanding, he gets involved in local politics and relationships. The female characters see his honesty and kindness, and gradually, a harem - like situation develops around him.

One idea could be that Naruto somehow gets transported to the Avatar world and his unique ninja skills draw the attention of multiple female characters. They might be intrigued by his determination and power, leading to a harem - like situation where they all vie for his attention.

One idea could be that Naruto and Sasuke discover a hidden ancient jutsu that grants them immortality. They then use this newfound power to protect the ninja world from threats that are beyond normal shinobi capabilities. For example, they might face off against an otherworldly demon that is immune to normal attacks.

One idea could be Naruto being immortal and crossing over into the world of Harry Potter. He could use his ninja skills to navigate the wizarding world, like using his shadow clone jutsu to attend multiple classes at Hogwarts. Another plot could be in a Final Fantasy crossover, where Naruto's immortality makes him a key figure in a battle against a powerful, world - destroying entity. His never - ending life gives him the time to master different magics and skills from the FF universe.

Well, he could cross over into a post - apocalyptic world as an immortal. Naruto would use his ninja skills to help the survivors, but his immortality might cause some fear among them at first. Or perhaps he crosses into a world of steampunk technology. His immortality gives him an edge in exploring this new and dangerous world filled with mechanical contraptions and power - hungry villains.