The most interesting aspects? Well, for starters, Naruto's immortality allows for long - term character development in the Fairy Tail setting. He can build relationships over a long period, like befriending Natsu and the others. His unique abilities like shadow clones could be combined with magic in unexpected ways. Also, his backstory as an outcast in his own world and then coming into a new world as an immortal could lead to some deep exploration of his character and how he adapts, which is really fascinating.
Well, in such a fanfiction, the storyline might develop with Naruto's immortality bringing new challenges to the Fairy Tail world. Maybe he has to deal with dark guilds in a different way because he can't be killed easily. His ninja skills could also blend with the magic in Fairy Tail, creating unique combat styles.
The Sharingan in such a fanfiction could be used as a tool for a Fairy Tail character to gain an edge in their battles. They might initially struggle to control it, but as they learn more about it, they become a formidable force. For instance, they could use the Sharingan's genjutsu abilities to deceive opponents in the Fairy Tail battles.
Well, Naruto would probably gain some really unique magical abilities. Fairy Tail mages are known for their diverse magic, and Naruto could combine his chakra skills with something like Fire Magic or Celestial Magic. He might become even more powerful in combat, with new ways to attack and defend.
One interesting crossover could be a scenario where Naruto characters gain the powers of Fairy Tail's magic. For example, Naruto using Fairy Tail's fire magic in addition to his own Rasengan. It would create a whole new level of combat and strategic possibilities. Another could be a story where the immortality aspect from Naruto combines with Fairy Tail's world, like an immortal character from Naruto existing in the Fairy Tail guild and influencing the guild's adventures and relationships with their own unique abilities and knowledge.
A popular one is 'Fairy Ninja'. In this fanfiction, the story starts with Naruto finding himself in the world of Fairy Tail. It's interesting to see how he adapts to the new environment and how his ninja abilities are perceived in a world full of magic. There are also some really cool fight scenes where Naruto's jutsus and Fairy Tail magic clash.
A Naruto - Ultear - Fairy Tail fanfiction could start with a magical portal that transports Naruto and Ultear to the Fairy Tail universe. Once there, they would have to adapt to the new environment. Naruto, being used to the ninja world, would find the magic in Fairy Tail both fascinating and different. Ultear, with her more serious nature, might initially struggle with the more light - hearted attitude of the Fairy Tail members.
One possible concept could be a story where a character from Fairy Tail somehow obtains the Sharingan from the Naruto universe. This could lead to all kinds of new abilities and storylines. For example, they might use the Sharingan's predictive abilities in battles within the Fairy Tail world, creating a whole new dynamic in combat.
In a Naruto, Ultear, and Fairy Tail fanfiction, the characters' personalities would play a big role. Naruto's determination and Ultear's complex past could interact with the fun - loving and rowdy Fairy Tail guild. Maybe Ultear has a connection to a long - lost Fairy Tail magic, and Naruto is drawn into the search for it. This could lead to adventures across different landscapes, from the Hidden Leaf Village to the various towns in the Fairy Tail world.
Natsu is often a very popular character. His already strong and fiery personality can be even more interesting when combined with immortality. He could continue his battles and adventures without the fear of death. Another popular one might be Erza. Her discipline and strength would be enhanced in an immortal setting as she could keep on protecting the guild for eternity.