In the 'bnha reacts to villain deku fanfiction', different characters would have diverse reactions. Uraraka would likely be heartbroken. She has always seen Deku as a source of inspiration and a good friend. So, seeing him as a villain would shatter that image for her. The teachers, like Aizawa, would be concerned about how the situation came to be. They would probably start to question their own teaching methods and the environment that led Deku to become a villain.
In 'bnha reacts to villain deku fanfiction', the plot might develop as the heroes try to stop Deku from causing more harm. But at the same time, they are conflicted because they know the old Deku. This internal struggle among the characters could lead to some interesting sub - plots. For example, some might try to reach out to Deku secretly to bring him back to the good side, while others might be more aggressive in their approach to stop him.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.