Mineta could be redeemed in a 'bnha mineta redemption fanfic' by having a character development arc. He might start to engage in more heroic deeds. Like, he could sacrifice his own safety to protect others during a battle. This would show that he is growing and becoming a better person, which would lead to his redemption.
Mineta could react with a mixture of embarrassment and defiance. He's a proud character in his own way. So when All Might yells at him, he might try to put on a brave face and argue back a little. But deep down, he knows he's in the wrong. Eventually, he'll break down and start crying, realizing that he has disappointed not only All Might but also his classmates who are all striving to be heroes.
Definitely the teachers. They would play a crucial role in the expulsion process. For example, Aizawa might be the one who has to enforce the decision. He's always been strict about behavior and academics in the classroom.
Mineta could be developed by having him learn new skills related to his quirk. This not only makes him more powerful but also gives him more confidence. He could also develop relationships with other characters on a deeper level. For example, having a heart - to - heart conversation with Midoriya about their insecurities. This would make him more relatable and show that he is capable of having meaningful connections, which in turn develops his character.
Mineta is often portrayed as a character with a lot of determination in light novels. He has his own goals and dreams within the hero - related storylines. For example, he wants to become a great hero despite his small stature and sometimes comical behavior.
Midoriya would initially be in shock. But then, his heroic instincts would kick in. He might try to analyze Toga's behavior and find a way to use it against her. For instance, if he notices that she gets distracted easily, he could create a diversion. He would also be thinking about the safety of others. He might worry that Toga has some bigger plan that involves harming his classmates or the city. So he would be constantly looking for a way to not only escape but also stop Toga's potential evil plans. And throughout all this, he would be drawing on his training at U.A. to keep his composure and think rationally.
Friendship is also a big theme. You'll see Mineta forming closer bonds with his classmates. In some fan fictions, he might have a heart - to - heart with a character like Midoriya and they become true friends, which changes his outlook on life.
His closest friends like Ochaco Uraraka and Tenya Iida would most likely side with him. They have always been there for Midoriya and share his values of justice and doing what's right. Also, those heroes who have seen Midoriya's growth and believe in his pure intentions would probably join his side.