Natsu could also become more bitter. His normally positive and energetic attitude might be replaced with a sense of resentment towards those who hate him. He may start to question his place in the guild and his own actions that led to this situation. In some fanfictions, this could lead to him trying to prove himself in a different way, perhaps by seeking power from other sources or trying to solve problems on his own without the help of the guild that has turned against him.
He might become more withdrawn. Since he is used to being liked and part of the group, being hated could make him isolate himself from the others in the guild in the fanfic.
In certain fanfictions, being hated could make Natsu more calculating. He might start to think more before he acts, as his impulsive actions are what may have led to the hatred in the first place. He could also become more empathetic, as he now knows what it's like to be on the receiving end of negative feelings from his comrades. This new - found empathy could either lead to him trying to reconcile with those who hate him or it could make him more determined to show them they were wrong about him.
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.
Natsu could also become more vengeful in such fanfiction. If he is constantly being abused, his normally positive attitude might turn into a desire for revenge against those who wronged him. For instance, instead of trying to resolve things in a friendly way like he usually does in the original series, he might be more inclined to use brute force and be less forgiving. This is a big change from his character in the official Fairy Tail story where he values friendship and forgiveness.
One reason could be that some writers might want to create a more complex or darker storyline. By having Natsu be hated, it adds conflict. Maybe they portray him as having made a big mistake that the other characters in the fanfic can't forgive.
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.
In fanfiction, Natsu's age can vary greatly. Some authors might keep him at his canonical age from the original Fairy Tail series, which is around 17 - 18 years old at the start. However, in alternate universe fanfictions, he could be older or younger depending on the plot. For example, in a time - travel based fanfic, he could be much older if the story takes place far into the future or much younger if it goes back to his childhood days.
Yes, in a lot of Fairy Tail fanfiction, Natsu can be overpowered. Writers often like to amp up his powers for more exciting storylines. For example, they might give him new fire - based abilities or make his existing ones even stronger to defeat more powerful foes.
Often, Natsu becomes more confident. With the Dragon Force, he realizes his greater potential, which boosts his self - assurance.
Natsu's character development in this fanfiction might involve him becoming more responsible. With his end form, he has greater power and with that comes the need to use it wisely. He could start to think more about the consequences of his actions. For example, he might not rush into battles as blindly as he used to. Also, his emotional growth could be a part of it. He could become more in tune with his feelings towards his friends, especially Lucy. His loyalty to the guild could also deepen as he realizes his new form can be a great asset to protect Fairy Tail.
When Natsu turns into a kid in fanfiction, his character development takes a different turn. He becomes more open to learning from his friends in a child - like way. Instead of always being the tough fighter, he has to be taught how to handle situations. His view of the world becomes more innocent, and this could change how he approaches magic and relationships. For example, he might be more willing to try new types of magic that he thought were too 'girly' or uncool before because he doesn't have the same pre - conceived notions as an adult. This new - found openness could lead to a more well - rounded development in the long run.
Another angle for a fanfiction could be that Natsu's mother was a human who was experimented on by dark mages. This experimentation gave her some dragon - like abilities, which she then passed on to Natsu. The fanfiction could focus on Natsu's journey to find out the truth about his mother and also to take revenge on those who wronged her.