His relationship with All Might could change. All Might might be both proud and a bit worried. Proud that Midoriya has this new power from his ancestry, but worried about how it will affect Midoriya's growth and the way he uses his existing quirk. They would have more in - depth discussions about power management.
A well - liked fanfiction is 'Midoriya's Dual Quirks'. As the title suggests, he gets not one but two quirks. This makes for an interesting read as he has to balance using both and figure out how they interact. There's also 'The Forbidden Quirk' where Midoriya gets a quirk that is considered dangerous or taboo in the My Hero Academia universe. It creates a lot of conflict as he tries to keep it a secret while also using it for good. And 'Quirk of the Ancients' where his new quirk has roots in an ancient, long - forgotten power source, leading to a journey of discovery about the history of quirks.
Well, in such a fanfiction, Aizawa might suddenly age rapidly. His physical appearance would change, with wrinkles and grey hair appearing. His once-sharp reflexes could be dulled due to the aging of his body. This could put him in a vulnerable position, especially in a world full of villains. And his relationship with his students might also change. They might start to see him more as a frail old man rather than their strong teacher.
Well, in a fanfiction where Midoriya gets a quirk, the power dynamics at U.A. High could be completely different. He might not be the underdog that he was in the original plot. His new quirk could lead to new friendships or rivalries. For instance, if his quirk is something extremely powerful, some students might be jealous, while others might look up to him more. Also, the story's focus on All Might's legacy might shift as Midoriya's new quirk may not be related to One For All.
There is a fanfiction called 'Midoriya's Unforeseen Quirk'. In this story, Midoriya gets a quirk that allows him to manipulate time on a small scale. It's really fascinating as it shows how he uses this new ability to his advantage in battles and also in his daily life at U.A. High. Then there's 'Quirked Midoriya's Journey' where his new quirk is related to energy absorption and release, and we get to see how he trains to master it.