She probably has to adapt to moving around on four legs instead of two. Her perspective of the world also changes. Things that were easy to reach as a human are now out of reach or difficult to access.
Often, she might be turned back into a human. Maybe a kind wizard or a magical spell reverses the transformation.
The story would change quite a bit. Firstly, the way Harry is treated by others would be different. The boys might act more protective or the girls might be more competitive. Secondly, her fashion sense could be different, which might seem minor but could actually add a new element to the story. For example, she might choose different robes or accessories. Thirdly, the way she approaches problems might change. As a girl, she might rely more on intuition and diplomacy rather than just charging in like Harry as a boy sometimes did.
As a girl, Harry's Hogwarts life would be full of changes. Firstly, his appearance would lead to different reactions from his friends. Some might be more cautious in their interactions, while others might be overly friendly in a different way. In the corridors, he might notice different looks from students. In the classroom, he may be grouped with other girls more often, which could affect his learning experience. When it comes to magical creatures, they might also react differently to him as a girl. His identity as a girl could also open up new opportunities for him to explore different aspects of magic that are more associated with female wizards in the fanfic world.
Well, Zuko's character development changes in several ways. Firstly, his relationships with others will be different. He'll experience different reactions from his friends and foes alike. His self - perception will also shift. He was used to being a male heir with certain expectations. Now as a girl, she has to redefine herself. This might make her more introspective. She may also develop new skills or ways of thinking. For instance, she could learn to use her femininity as a strength rather than relying solely on her combat skills as she did before.
Physically, of course, there would be obvious changes. But personality - wise, he might become more in touch with his emotions. In the original, Lelouch was often very calculating and hid his true feelings. As a girl, society in the story might expect her to be more open about her emotions, which could force her to confront and express them more.
It can also be used to explore different aspects of the characters. The girl in cat form might have different behaviors and instincts that play into the relationship. Maybe she's more playful or shy as a cat, and this affects how the romance develops. The transformation can also create some comical situations, like when she accidentally knocks things over in cat form, which can be a source of bonding between the characters.
It's likely that Naruto, now a girl, would be more perceptive. In the male form, he was sometimes oblivious to the subtleties of relationships. As a girl, she might pick up on the unspoken feelings between characters more easily. This could lead to her playing a different role in the group dynamic, perhaps becoming a mediator or a source of emotional stability within the team.
She could also change in how she approaches relationships. Before, as a boy, Sasuke was more reserved in his interactions with others, especially with Naruto. But as a girl, she might be more forward in expressing her feelings towards Naruto, whether it's friendship or something more. This could lead to some really interesting character development arcs and new plot directions in the fanfiction.
In the fanfic, Harry as a girl may have a different approach to problem - solving. While Harry as a boy was often quick to action and relied on his Gryffindor courage, as a girl she might think more about the consequences before acting. She could also use her femininity to her advantage in some situations. For instance, she might be able to charm some of the more old - fashioned professors or male characters in a way that Harry as a boy couldn't. This change in approach could lead to different outcomes in various adventures and challenges throughout the story.
At first, she could be in disbelief. She might think it's just a strange dream or hallucination. But as the transformation progresses and she starts to experience the world as a cat, she may feel a mix of curiosity and fear. She'll be curious about her new form and abilities, but also scared of the unknown and how she'll survive in this new state.