Well, with Bakugo, it would be a big change. Usually Bakugo is so used to Izuku's vocal reactions. But with Izuku mute, Bakugo might start to feel guilty for all the times he shouted at him. He could also start to respect Izuku more as he sees him overcome this new obstacle. For Ochaco, she would probably be one of the first to try and learn sign language to communicate with Izuku better, strengthening their bond.
His relationship with All Might could also be affected. All Might might see Izuku as an even more special student. Izuku's healing ability could be something that All Might didn't expect, and it could make All Might even more proud of him. Also, Izuku could use his healing to help All Might with any lingering injuries from his hero days, strengthening their bond.
His relationship with Bakugo would likely change significantly. Bakugo might initially be jealous of Izuku's unique shadow quirk. But over time, they could develop a more competitive but respectful relationship, as Izuku's shadow quirk gives him new ways to fight. With his friends like Uraraka, Izuku's new quirk could make him seem a bit more mysterious. Uraraka might be curious about how his quirk works and they could bond over her trying to understand it.
Well, it makes it a lot more challenging. He has to rely on different skills. For example, he can't just see an opponent's attack coming like before. He has to use his sense of touch more, like feeling the air currents change when someone is about to strike.
The other characters at U.A. would likely be very supportive. Ochaco might become like an older sister to Eri, always there to cheer her up. Bakugo could be a tough - love type, teaching her to be strong. The teachers, like Aizawa, would keep an eye on her progress. They would also be a source of protection. The overall atmosphere at U.A. would become more family - like, with Eri as the new addition.
In certain fanfictions, the izuku system is a secret. This secrecy can strain his relationships as he has to constantly lie or be evasive about his sudden improvements. But when the truth comes out, it can either lead to a huge rift or a deeper understanding among his friends, depending on how the writer chooses to portray it.
Her relationship with her classmates would become strained. They might notice her odd behavior towards the person she's fixated on. For example, if she's constantly glaring at anyone who gets too close to that person, it would make others uncomfortable. Her friends might start to avoid her or try to talk to her about her behavior, but she won't listen as she's too consumed by her yandere feelings.
When Izuku has a mythical quirk in fanfiction, say a power to transform into mythical creatures, it can change how others perceive him. His classmates might be in awe or a bit scared at first. But as time goes on, they would learn to work with his new abilities. His relationship with his teachers also changes as they have to figure out how to train him to control this unique quirk.
In a fanfiction where Izuku's system quirk is very powerful, it could lead to some characters feeling inferior. However, his closer friends like Ochaco or Iida might see it as an opportunity for all of them to grow. They could train with Izuku to better understand his quirk and improve their own skills. On the other hand, villains would likely target him more, which could put a strain on his relationships as he tries to protect those around him from the danger his quirk attracts.
Well, in some fanfictions, Izuku's transmutation quirk makes his friends view him as more of a valuable asset. For example, if he can transmute materials to create useful items, his friends might rely on him more for supplies during missions. This can strengthen their bonds as they trust him with important tasks.
Well, if Izuku has a chain quirk in fanfiction, it can strengthen his relationships. For instance, he might use his chains to rescue a friend in danger, which would deepen their bond. The chains could be a physical representation of his loyalty and commitment to his friends.