Natsu's character could change in her approach to problem - solving. As a girl, she might use her femininity to her advantage. Maybe she'd be more diplomatic in handling conflicts within the guild or outside. For example, instead of using brute force all the time like she did as a male, she could try to talk things out more often, while still having that fiery spirit of hers that we all love from the original Natsu.
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.
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.
Often, Natsu becomes more confident. With the Dragon Force, he realizes his greater potential, which boosts his self - assurance.
He might become more withdrawn.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.
He might initially be shocked and confused. Natsu has always been so loyal to Fairy Tail, so this would be a huge blow to him.
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.
Natsu would likely be extremely hurt. He has always been loyal to Fairy Tail, so being betrayed would be a huge blow. He might initially be in disbelief, not wanting to accept that his friends and guildmates could turn on him.
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.
Emotionally, Natsu could become more empathetic. If he meets characters in the dark guild who had a difficult past that led them to the dark side, he might start to see things from their perspective. This doesn't mean he would support their actions, but he would understand them better. For example, if there's a character in the dark guild who was orphaned and turned to dark magic for survival, Natsu might feel sympathy for them and try to offer an alternative path rather than just attacking them. This would show a more mature and compassionate side of his character that wasn't as prominent before.
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.