If Natsu had the Sharingan in a fanfiction, it would be a game - changer. The Sharingan not only gives the ability to see and predict movements but also can copy techniques. Natsu might be able to copy some of the unique fighting styles or even certain magic - based attacks he sees. This could lead to some really interesting crossovers in terms of his fighting style, mixing the power of the Sharingan with his own fire - based dragon slayer magic.
Well, if Natsu had the Sharingan in a fanfiction, it would likely enhance his combat abilities significantly. He could predict his opponents' moves more accurately, similar to how Sasuke uses it in Naruto. This would make him even more formidable in battles against strong foes in the Fairy Tail world. Maybe he could use it to analyze magic spells and find their weaknesses faster.
The story would have to shift its focus. Instead of relying on Natsu's dragon - slayer magic and Mirajane's take - over magic, new characters or existing ones would need to shine. This could open up new plotlines such as the discovery of new magic among the remaining members or the forging of new alliances outside of the guild to compensate for the loss of Natsu and Mirajane. It would be a major turning point in the fanfiction's narrative.
His relationship with Lucy would be interesting. If reborn, Natsu might be more protective of Lucy from the start. He could also share his past life memories with her, which would deepen their bond even more. They might start going on adventures together even earlier in the story.
Their relationship would likely become more intimate and deeper. With a baby on the way, they'd have to rely on each other more. Natsu would probably become more gentle and caring towards Mirajane, and Mirajane would feel more protected by Natsu.
The story would change a great deal. Natsu's usual brash and bold behavior as a boy might be tempered a bit as a girl. His interactions with the guild members would be different. For instance, the way he flirts with Lisanna might turn into a more sisterly kind of relationship if he's a girl. And his rivalry with other male characters could shift to a different type of dynamic.
There could be a deeper interaction where the OC's Sharingan actually evolves due to exposure to Fairy Tail magic. Maybe the strong magical energy in the Fairy Tail world causes the Sharingan to gain new abilities, like being able to see the future more clearly in magical battles or being able to sense the presence of hidden magical items. This would create an exciting development in the fanfiction as the OC discovers and masters these new powers.
In the fanfiction, Natsu and Erza's meeting could be a catalyst for a new arc in the Fairy Tail story. Suppose they discover a hidden threat to the guild during one of their interactions. This could lead to a whole new adventure where they have to gather the other guild members and use their combined skills to defeat the threat. It would be a story full of action, friendship, and magic.
If Natsu is a girl in this fanfiction, her character might change in terms of her relationships. For instance, she may be more self - conscious about her appearance compared to when she was male. Also, her interactions with male characters like Gray could shift. Instead of their typical rival - like banter, there could be a more complex emotional undertone, like a friendly - rivalry with a hint of romantic tension perhaps.
Well, Natsu's relationship with Gajeel could be really different. Gajeel might be more respectful towards Natsu as a girl, or he could be more competitive in a different way, like trying to prove that he's the better dragon slayer in a more gentlemanly manner. Natsu's relationship with the guild master, Makarov, would also change. Makarov might be more protective of Natsu as a girl, and Natsu might have to fight harder to be taken seriously in guild matters. In general, all of Natsu's relationships would be reshaped, with new levels of complexity and humor added to the story.
His relationship with Lucy might become more protective. Since he's now more vulnerable with one arm, Lucy might feel the need to be stronger to protect him as well, which could strengthen their bond in a different way.
In fanfiction, if Natsu and Lucy had a baby, it would be a huge shift for their relationship. Natsu would no longer be just the impulsive dragon slayer. He'd have to be a father figure. Lucy, with her kind heart, would pour all her love into the baby. They'd have to work together to balance their guild duties and family life. Natsu might bring the baby on small, safe adventures, teaching the child about the world of magic, while Lucy would make sure the baby has a stable home environment. Their relationship would be centered around this new life they've created.