Midoriya would likely be very interested. He is a huge fan of heroes and the hero world in general. He would approach the fanfiction with an open mind and might even analyze it from a perspective of character growth and development. He could find inspiration in some of the unique takes on heroism in the fanfiction, and might use it as a form of motivation to improve himself further as a hero - in - training.
On the other hand, Bakugo might be enraged. He's a prideful character and if the fanfiction misrepresents him or shows him in a way he doesn't like, he could get really angry. He might even go on a rant about how inaccurate it is compared to his real self and his ideals of heroism. Also, if the fanfiction portrays him as weak, that would definitely set him off.
RWBY as a whole might find it a fun and different way to experience the My Hero Academia world. They could have group discussions about the fanfictions they've read. For example, they might debate about which fan - created quirk is the most interesting or which character in the fanfiction is the best representation of the original My Hero Academia characters. It could also lead to them thinking about how their own world could be re - imagined in fanfictions by others.
For Todoroki, if he saw fanfiction that delved into his family issues in a new way, it could make him more self - reflective. He might start to think about his past and his relationship with his father from different angles, which could potentially lead to him having a more nuanced view of himself and his place in his family.
Well, some of the characters might be really excited. Deku, for example, would probably be super interested in the different powers and hero concepts in Marvel fanfiction. He might take notes on how Marvel heroes use their powers and try to find ways to apply similar ideas to his own hero journey.
The heroes in MHA like All Might might view Dabi fanfiction with a sense of concern. All Might has always been about justice and the greater good. He might see Dabi fanfictions as a sign of how some people are attracted to the darker side of the hero - villain dynamic. He could worry that it might influence younger fans in the wrong way. However, villains in MHA might have different reactions. Shigaraki could see Dabi fanfictions as a way to understand how the public perceives Dabi and use that knowledge to his advantage in his evil plans.
Well, some might be really intrigued. Deku, for example, would probably be super excited and start analyzing the different character relationships and power dynamics in the fanfiction, comparing them to what he knows from Naruto. He'd be taking notes in his head, thinking about how these concepts could apply to his own world and his journey to become a great hero.
The characters would have a range of reactions. Some would be in disbelief. They have witnessed Deku's journey from a quirkless boy to a powerful hero - in - training. So, seeing him as a villain in a fanfiction would be like a complete 180 - degree turn. Midoriya's mother would be devastated. She has always supported her son, and to see him as a villain would go against everything she believed in. The teachers at U.A. would be concerned and start to analyze what could have led to this change. Maybe they would question their own teaching methods or if there were any signs they missed during Deku's time at the school.
Some characters like Tsuyu would be quite level - headed in their reactions. She might simply take the fanfiction as an interesting take on the War Arc. If it has some inaccuracies, she might just shrug it off as creative license. But for characters like Mineta, he could be all over the place. He might be excited if he's shown as more heroic than he actually was in the War Arc, or he could be sulking if he's made to look like a fool.
Some characters might be amused. For example, Denki Kaminari would probably find the wild and creative stories about his electric powers really cool and get a good laugh out of them. He's the type who enjoys a bit of fun and absurdity.
Well, Bakugo might scoff at first. He'd probably think Batman is too brooding and not as straightforward as he likes his heroes. But then as he reads more of the fanfiction, he might grudgingly admit that Batman's detective skills are cool. Deku, on the other hand, would be super interested. He'd be analyzing every move Batman makes in the fanfiction, taking notes in his head about Batman's strategies and how they could be applied in his own hero work. Uraraka would be more focused on the relationships in the fanfiction. She'd be all 'aww' at the cute moments and feel for the characters when they're in trouble.
For the teachers in My Hero Academia, like Aizawa, he would probably be indifferent to most ships fanfiction. But if there were ships that involved his students in inappropriate or unethical ways in the fanfiction, he would be very concerned. Otherwise, he would just see it as another strange aspect of the fans' creativity and leave it at that.