In the fanfic, the female Naruto Uzumaki could be a mysterious figure at first. People in the My Hero Academia world would be intrigued by her strange powers and her different appearance. As she gets involved in the story, she would start to share her values of friendship and perseverance. She might even start a new training regime for some of the students who are struggling with their quirks, based on the training methods she learned in the Naruto world.
Well, she could be a part of a special mission. Since she has experience in handling complex situations in the Naruto world, she could bring that knowledge to the My Hero Academia world. Her rasengan - like attack (adapted to fit the quirk concept) could be a powerful weapon against villains. And she would form relationships with the other students, like Ochaco. They could bond over their determination to be great heroes, although their methods are quite different.
One idea could be that the female Naruto Uzumaki has a quirk similar to her chakra control in the Naruto world. She could use it to perform amazing physical feats like super - speed and enhanced strength. She might join U.A. High School and form strong friendships with characters like Deku. Her spunky and determined personality would make her stand out among the other students.
The presence of Dark Naruto in My Hero Academia fanfiction would change things quite a bit. His combat skills and his chakra - based powers would be very different from the quirks in MHA. This could lead to some interesting battles and power - up scenarios. For example, how would heroes like All Might or Deku react to someone with such different powers? Moreover, Dark Naruto's backstory of being an outcast in his own village could parallel some of the characters in MHA who also face discrimination. This could lead to some complex character interactions and story arcs.
If Naruto with the Rinnegan were in My Hero Academia, the power dynamics would be crazy. His abilities like the Six Paths powers could make him one of the top heroes instantly. For example, his ability to absorb and release ninjutsu could be seen as a quirk. And his combat experience from the Naruto world would give him an edge in battles against villains in MHA.
Batman in the My Hero Academia world would likely be a bit of an outsider at first. His dark and brooding nature might contrast with the more colorful and often optimistic characters in MHA. However, his intelligence would be highly respected. He could use his detective skills to help solve some of the mysteries that pop up in the MHA world, like the origin of certain quirks or the identity of villains who are hiding in plain sight. And his martial arts expertise would make him a formidable opponent in battles against villains.
Well, Wolverine could fit into the My Hero Academia storyline as a foreign hero or a special guest. His mutant powers would be seen as a very unique form of 'quirk' in the MHA world. He could be brought in to train the students at UA, sharing his combat experience which is far different from what they usually get. Maybe he could be part of a special international hero exchange program.
Deadpool would be a wild card. His regenerative abilities would make him seem like he has a quirk similar to Recovery Girl's but on steroids. He'd likely not follow the normal hero - society rules. For instance, he might start fighting villains in the middle of a civilian - filled street just because he felt like it. His presence would also disrupt the power balance as he has a vast array of weapons and combat skills that are not typical in the My Hero Academia world.
Saitama's laid - back personality would be a contrast to the more intense and passionate heroes in My Hero Academia. He might seem uninterested at times, but deep down he has a strong sense of justice. This could make for some interesting interactions, like when he casually brushes off the fame that comes with being a hero in the My Hero Academia world.
The Doom Slayer could be a mysterious figure in the My Hero Academia fanfiction world. He might be from a parallel dimension where his fight against demons is similar to the heroes' fight against villains. He could team up with the likes of All Might or Deku, teaching them about his unwavering determination. His presence would add a new level of intensity to the battles, as he doesn't hold back and is used to facing much more terrifying foes than the average villain in My Hero Academia.
In a fanfiction scenario, the Hulk might be a result of a secret experiment by the League of Villains to create an ultimate weapon. But instead of being fully controllable, he breaks free and becomes a wild card in the power dynamics of the My Hero Academia world. His presence would disrupt the existing balance between heroes and villains as everyone tries to either control or destroy him.
In a fanfic, Bruce Wayne could be an exchange student from a foreign country where there are no Quirks but advanced technology. He could introduce new concepts of heroism that are more about using gadgets and strategic thinking rather than relying solely on Quirks. He would also be a bit of an enigma to the characters in My Hero Academia, as his methods are so different from what they're used to.