If Alya gets isekaied, she could develop into a more strategic thinker. In the Miraculous Ladybug world, she's mainly an observer and reporter. But in an isekai world, say one full of complex puzzles and mysteries, she might have to use her intelligence in a different way. She could learn to analyze situations more deeply and come up with plans to overcome obstacles. This would be a big change from her role in the original story where she's often just reacting to Ladybug and Chat Noir's actions.
It could be portrayed as having more powerful abilities. For example, instead of just creating sentimonsters, it can also control the elements for a short time when a sentimonster is created. So if a sentimonster is made to look like a bird, it can also make the area around it windy like the bird is flying fast.
A different development could be that they fall out completely. Nathalie might realize that Gabriel's obsession with getting the Miraculous is too dangerous and she decides to leave his side. This could lead to her becoming an ally of the heroes and working against Gabriel, which would be a huge shift in the story.
Writers often portray the characters in unique ways in Loveater fanfictions. Marinette, as Ladybug, could be more emotional. The stress of dealing with Loveater might make her more likely to let her feelings for Adrien (Chat Noir) show in ways she normally wouldn't. Chat Noir, on the other hand, could be portrayed as more brooding. He might be more focused on the mystery behind the akuma and less on his usual flirty self.
Adrien in fanfiction is often the sweet, kind-hearted model who is also a superhero. He's the boy next door type. Felix, on the other hand, is usually characterized as more of an enigma. He may be more calculating and less open than Adrien.
In the summer camp setting, characters' relationships can develop in many ways. For Ladybug and Chat Noir, they might become closer as they train together at the camp. They could share more personal stories and secrets, deepening their bond. Other characters like Marinette's friends could also form new friendships with other campers. Maybe Alya meets someone who is also into journalism and they start collaborating on a project about the camp. And then there's the possibility of a love triangle developing between some of the characters, which can add drama to the story.
For the 'master' character, you can give them a strong sense of purpose. For example, if they are a villain - their purpose could be to gain ultimate power over all the miraculouses. Their actions would then be driven by this goal. As for the 'slave' character, show their internal struggle. They might be forced to do things against their will but still have their own moral compass that they try to follow.
In the fanfiction, their relationship could develop more quickly. Instead of the slow build - up in the show, they could have a heart - to - heart conversation earlier. For example, Kagami could directly tell Adrien that she likes him more than just a friend. This would force Adrien to confront his feelings for her sooner, rather than being so focused on Ladybug all the time.
When it comes to other characters like Alya and Nino, if they are babysitting together, their relationship could become more stable. They might learn how to handle stress and responsibility as a couple while taking care of the kids. They could also have inside jokes and special moments that are unique to their babysitting experience, which would strengthen their bond.
Well, in many fanfictions, Marc and Nathaniel's development is intertwined. Marc might initially be hesitant to be involved in any of the superhero - related chaos in Paris. But as he spends more time with Nathaniel, who is more eager to be part of the action, Marc gradually becomes more curious. He starts to study the Miraculous and their powers more closely. Nathaniel, in the process, learns to be more patient. He realizes that Marc needs time to adjust and adapt. Their friendship deepens as they both grow and change, which is a common and interesting aspect of their character development in Miraculous Ladybug fanfiction.
In these fanfictions, Ladybug often develops a deeper understanding of her powers. For instance, she might realize that her role isn't just about fighting akumas. With the 'rewrite the stars' concept, she could learn that she has the power to change the very fabric of the world around her. This makes her more confident and also more cautious as she realizes the great responsibility.