In the 'deku gets turned into a child fanfiction', Deku is the main focus, but his friends like Uraraka and Iida would be key characters. Uraraka might be especially kind and motherly towards him. Iida could be strict in making sure Deku follows the right path. And villains like Shigaraki could see this as an opportunity to target Deku in a new way, so they would also be significant characters in this scenario.
Well, in this fanfiction where Deku is turned into a child, Deku is the obvious key character. However, his teachers, like Aizawa, would be crucial. Aizawa would have to deal with this unexpected situation and figure out how to help Deku. Tsuyu Asui could also be important, as she has a calm and collected nature and could offer unique support to a child - like Deku. Plus, the other pro - heroes in the story might get involved to protect Deku in his vulnerable state.
In the 'deku gets turned into a child fanfiction', it could lead to some really interesting storylines. Maybe he would see the world in a whole new way, with the innocence of a child. His interactions with his mentors could become more like a child - adult relationship where they have to guide him more. Also, his enemies might underestimate him at first, which could create some unique battle scenarios.
His friends would be really shocked at first. Uraraka might be the first to try and comfort him, seeing as she has a kind heart. Bakugo, on the other hand, would probably be both confused and a bit angry at the situation. All - Might would likely feel a sense of responsibility to protect Deku even more than before. The teachers at UA would probably start researching how to reverse the transformation immediately.
Maybe Mokuba would be a crucial character. As Seto's brother, he would be deeply concerned about his brother's transformation. He could be the one staying by Seto's side the most, trying to comfort him and also helping the others figure out how to reverse the spell. Another character could be Kaiba's business rival who might see this as an opportunity to take over KaibaCorp, adding some conflict to the story.
Well, one possible plot could be that a villain uses a new type of quirk -altering device on Deku. As a child, he might have to rely on his basic knowledge of heroics and his natural determination. His friends would be confused at first but then quickly realize it's still Deku inside. They'd have to protect him from other villains who might see this as an opportunity to get rid of the future symbol of peace while he's vulnerable.
The main characters would surely include Deku. Then there could be his classmates from U.A. High. Iida might be one of them, who could have a very formal reaction to Deku's new haircut. And then there could be a new character, like a street - artist who is inspired by Deku's new look and starts to create art based on him.
The main antagonist could actually be Anakin's own self - doubt. Since he's in a child's body but has an adult's memories, he might struggle with feelings of inadequacy. This internal struggle could act as an antagonist, preventing him from fully embracing his new situation and using his abilities to the fullest. It could be a psychological battle within himself that holds him back more than any external foe.
In the fanfiction, Kagome's enemies could underestimate her. They think that because she's a child, she's not a threat. But in reality, even as a child, Kagome still has her strong will and some of her powers. She could surprise them by using her wits and the little bit of spiritual power she has left to outsmart them. For instance, she could lead them into a trap that her friends set up.
In a 'Seto gets turned into a child fanfiction', the plot might revolve around Seto's own struggle to adapt to his new form. He's used to being in control and powerful, but as a child, he has limited abilities. He could try to communicate with others about what happened to him, but with his child - like speech and behavior, it becomes a challenge. His friends might have to protect him from those who would take advantage of his vulnerable state.
The story could progress with Deadpool having to adapt to his new child form. He might start going to school in the fanfiction world. There, he could get into trouble for his unruly behavior that comes from his adult - like mindset in a child's body. Or he could make new friends who are actually kids and learn about the simple joys of childhood like building sandcastles or playing hopscotch.
In addition to the usual suspects, there could be some new characters introduced. For example, an old Pokémon trainer who has seen similar things before and can offer some advice on how to deal with baby Ash. Or a mysterious Pokémon that has the power to either help or hinder the process of getting Ash back to normal.