Well, Bakugo Katsuki can be quite popular too. His reaction to Izuku's transformation is often explored in these fanfictions. Some writers might show him being more protective or having a more complex relationship with Izuku as a girl. Additionally, All Might could also be a popular character as he might be involved in guiding Izuku through this strange new situation, whether it's about her new identity or how it affects her hero training.
Izuku herself is obviously a very popular character in this type of fanfiction. Since the whole story revolves around her transformation into a girl. Her friends like Ochaco Uraraka also tend to be popular as they often play important roles in Izuku's new life as a girl. Their relationship might change and develop in interesting ways.
In 'izuku turns into a girl fanfiction', Todoroki Shoto can be a popular character. He might have a different dynamic with Izuku now that she is a girl. Maybe he shows more concern or a different kind of friendship. And some female characters who might have been in the background before could become more prominent. For example, Momo Yaoyorozu could potentially have new interactions with Izuku as they are both female heroes - in - training and could bond over different things.
Well, obviously Izuku is one of the main characters, even when he's turned into a cat. His friends like Bakugo and Ochaco are also likely to be main characters. They would be the ones trying to figure out what happened to Izuku and how to turn him back. And maybe All Might could also be a main character, if he gets involved in the whole situation to help his young protege.
Well, in some fanfictions of this kind, Izuku as a girl might discover new aspects of her Quirk. Since the physical change could potentially affect how she uses her power. Also, there could be a plotline where she has to deal with romantic interests in a new way. As a girl, she might attract different kinds of attention from her male classmates, and she has to navigate through those new feelings and situations.
Definitely his friends from U.A. High. Bakugo would be an interesting character in this scenario. He might initially be annoyed but then develop a soft spot for baby Izuku. Ochaco would also be there, using her quirk in creative ways to take care of him, like floating toys to keep him entertained.
Well, it could start with Izuku waking up as a girl one morning with no explanation. He (now she) tries to keep it a secret at first but then realizes it's not possible. The story could focus on how Izuku's relationships change. For example, Bakugo might initially tease her more harshly but then come to respect her in a different way. And Midoriya could find that she has a different approach to using her quirk as a girl, maybe being more strategic or having different physical capabilities that she has to learn to master.
Bakugo is often paired with Izuku in izuku time skip fanfiction. Their relationship, which was initially one of rivalry, can develop into a more complex and collaborative partnership over the time skip. They might learn from each other's strengths and work together to face powerful villains.
Peter Parker from Spider - Man could be an interesting choice. Imagine if Peter was turned into a girl. He would still have his spider - powers, but would have to deal with the added complications of being a female superhero in a male - dominated world.
Obviously, Bakugo would be one of the most affected. His relationship with Izuku has always been complex, and Izuku becoming a girl would surely change the dynamic between them. He might have to re - evaluate his feelings of rivalry and superiority. All Might would also be affected. As Izuku's mentor, he would need to adjust his training methods and support system to fit Izuku's new situation as a girl.
Perhaps a jealous classmate who has always been in Izuku's shadow. Now that Izuku is a girl, this classmate sees an opportunity to undermine her. They spread rumors about how Izuku's transformation is some sort of cheat or that she's not the same reliable person she was as a boy. This classmate's actions and attempts to sabotage Izuku would make them the main antagonist.
Katsuki Bakugo can be a popular character in izuku martial arts fanfiction. He might start as a rival in martial arts training, constantly challenging Izuku to improve. Their competitive relationship adds a lot of drama and tension to the story.
Bakugo could also be popular. In a lot of fanfictions, Bakugo's fiery personality clashes with Izuku's more stealthy ninja - like nature. Their interactions can create a lot of drama and interesting storylines.