What are some interesting ideas for a 'bnha big three fanfic'?

One idea could be exploring their training days before they became so well - known. Maybe focus on how they overcame their individual weaknesses. For example, Mirio could be shown struggling with a new type of quirk - based obstacle and how he found a creative way to get past it.

Another interesting concept is a chatroom that exists secretly among the villains. They plot their next moves, argue about the best ways to take on the heroes, and maybe even have some internal power struggles. It would be exciting to see their different personalities clash in this virtual space.

One idea could be a crossover with Harry Potter. Imagine Deku attending Hogwarts and learning magic while also trying to control his One For All quirk. He could make friends with Harry and they could share their experiences of being the 'chosen ones'.

Well, you could start with the costumes. In a genderbend fanfic, the female versions of male heroes might have more stylish or practical costumes. For instance, All Might as a woman could have a more form - fitting suit that still represents her power. You could also play with the backstories. Maybe the female - genderbent Deku had to face different kinds of discrimination in a male - dominated hero world. And of course, there could be new romances or different interpretations of existing friendships.

One idea could be a fanfic where Nezu takes on a mentorship role for a young and struggling hero student. He could use his intelligence and experience to guide the student through difficult challenges.

One idea could be exploring the backstory of a minor character. For example, you could write about how a background student in Class 1 - A got their quirk and their journey to U.A. Another idea is to do a 'what if' scenario. What if Midoriya didn't inherit One For All? You could show how his life would be different, perhaps he'd develop his own unique quirk through sheer determination. And a third idea could be a crossover within the BNHA universe, like a story where the heroes have to team up with the villains to fight a greater threat.

One idea could be to create a fanfic where a character has a quirk that allows them to manipulate time within the toon world. They could use it to fix mistakes or prevent disasters. Another idea is a quirk that lets a character bring toon characters to life in the real world, leading to all sorts of chaotic and fun adventures. And perhaps a quirk that enables a character to transform into any toon object, like a cartoon hammer or a bouncing ball for combat or utility purposes.

Perhaps the villains get hold of the truth serum and use it on a captured hero. This hero reveals some crucial information about the hero society's security measures. It then becomes a race against time for the other heroes to either rescue the captured hero or change the security systems before the villains can act on the information.

One idea could be that the villains release a powerful virus that turns most of the population into mindless zombies. The heroes have to not only fight the villains but also deal with the zombie horde. Another could be an apocalyptic event that wipes out most of the world's quirks, and the remaining heroes and villains must adapt to this new powerless world.

One idea could be to have characters from Boku no Hero Academia (bnha) and Demon Slayer (kny) participate in a joint training session. For example, Deku from bnha could learn some swordsmanship techniques from Tanjiro of kny. This would create an interesting dynamic as they come from different worlds with different power systems.