All Might also frequently appears. As Izuku's mentor, he plays an important role in guiding Izuku through his quirk evolution. He might offer advice on how to control the new aspects of the quirk or help Izuku understand the implications of his evolving power.
Uraraka is another common character. Her friendship with Izuku can be affected by his quirk evolution. She may be in awe of his new abilities or worry about how it changes their dynamic. Sometimes, she can also be involved in situations where Izuku's evolved quirk is used to protect her, strengthening their bond.
Bakugo is often a key character. In many fanfictions, Bakugo's reaction to Izuku's evolving quirk can range from envy to begrudging respect. Their relationship is always a central focus, with Bakugo either trying to outdo Izuku or having to come to terms with Izuku's newfound power.
Bakugo is often paired with Izuku. Their complex relationship from the original series can be further explored in fanfiction with Izuku's growth quirk. All Might is also a common character paired with Izuku. He could play a role in guiding Izuku to control and develop his growth quirk. Ochaco is another one. She might be involved in stories where Izuku's growth quirk affects his relationships, especially romantic ones.
Bakugo is often paired with Izuku. Their relationship is complex in the original series, and in fanfiction with Izuku's time quirk, it could add more depth. Bakugo might be jealous of Izuku's new power at first but then come to respect it as they face challenges together.
Well, Todoroki is frequently paired with Izuku in such fanfictions. Given Todoroki's own powerful quirk and his journey of self - discovery, he and Izuku with his voice quirk can have some great interactions. They might train together, and Izuku could use his voice quirk to help Todoroki better control his own quirk's temperature aspects. Momo is another one. As a smart and resourceful character, she could help Izuku understand the scientific aspects of his voice quirk, like how sound waves work and how to optimize his quirk usage. And of course, Iida. Iida's strict sense of justice and leadership could pair well with Izuku. He might encourage Izuku to use his voice quirk for the greater good and help him come up with strategies to use it in hero work.
Bakugo could also be popular. In a lot of fanfictions, Bakugo's fiery personality clashes with Izuku's more stealthy ninja - like nature. Their interactions can create a lot of drama and interesting storylines.
Some characters might be immediately terrified. They could avoid Izuku or even try to drive him away. For example, classmates who don't understand his quirk might spread rumors about him.
Another interesting plot idea is that Izuku's quirk evolution is tied to his emotions. When he experiences strong positive emotions like hope or love, his quirk becomes stronger and evolves in unexpected ways. For instance, it could manifest as a healing ability in addition to his existing powers. This would make his character development more complex as he has to learn to manage his emotions not just for his own well - being but also for the sake of his quirk evolution.
The 'Mentor Figure' trope is also quite common. Given the power of the lightning quirk, Izuku usually needs someone to guide him. This could be an older hero or even a mysterious stranger. The mentor helps him understand his quirk better, trains him in combat techniques that are specific to his lightning - based powers, and also gives him moral support. This trope adds depth to the story as it shows Izuku's growth not just in terms of power but also in character.
One common theme is self - discovery. Izuku often has to figure out the full extent of his healing quirk, which is a journey of self - exploration.
In izuku sunshine quirk fanfiction, the theme of discovery is common. Izuku discovers new aspects of his quirk as he progresses. Also, the theme of acceptance is there. He has to get others to accept his rather unique quirk, and at the same time, he has to accept the responsibilities that come with it. The fanfictions may also touch on the theme of redemption, where Izuku uses his sunshine quirk to bring about positive change in characters who have gone astray.
All Might often appears. Since he was Izuku's mentor, in time travel scenarios, he might be the one Izuku turns to for advice or assistance. Another common character is Bakugo. Their complex relationship can be explored further in time travel stories, like if Izuku goes back in time, he might try to change how Bakugo treated him in the past.