Maybe the Danganronpa characters get transported to the world of My Hero Academia. They then have to adapt to a world where having superpowers is normal. Some of them might try to use their unique skills from the Danganronpa world to become heroes or villains in this new setting.
In some fanfictions, the Pokemon world and the My Hero Academia world might merge. This could lead to situations where the heroes have to deal with Pokemon villains. Like a villain using a powerful and evil - natured Pokemon to cause chaos in the city, and the heroes would have to use their Quirks and their newfound knowledge of Pokemon to stop them.
A really fascinating crossover might be where Ben's Omnitrix gets into the hands of a character from My Hero Academia, like Midoriya. Imagine him trying to figure out how to use all the different alien forms and how it would affect his hero training. Or perhaps having Vilgax team up with the League of Villains to take over both universes. This would create a really intense and action - packed story.
In some fanfictions, the characters could swap universes. So, Harry Potter characters end up in the My Hero Academia world and vice versa. The students at Hogwarts might be really confused by the concept of quirks, while the heroes in My Hero Academia would be fascinated by magic. It would be a great opportunity to explore how different characters adapt to new and strange environments.
Well, in some My Hero Academia JoJo fanfiction, there are crossovers where the characters' personalities are blended. Deku might take on some of Jonathan Joestar's noble traits. And in terms of the storylines, there could be a scenario where the One For All quirk is somehow related to a stand's power source. This could lead to a whole new adventure where Deku has to not only master his quirk but also understand the stand - like aspect of it.
One interesting crossover could be the characters from My Hero Academia and RWBY teaming up for a big battle. For example, Izuku Midoriya's unique quirk combined with Ruby Rose's scythe - wielding skills would make for an epic fight scene. They could be facing a common enemy that has the characteristics of both the Grimm from RWBY and the villains in My Hero Academia.
One interesting crossover could be the Spartans from Halo having to adapt to the Quirk - filled world of My Hero Academia. Maybe they'd have to learn to work with heroes who use their powers in very different ways compared to their high - tech weaponry.
One plot idea could be a villain who is secretly a double agent, working for the heroes all along. They infiltrate the villain group and gather information. Another idea is a hero who loses their quirk and has to rely on their wits and combat skills alone, like Batman in the DC universe. And a villain - hero team - up to face a greater threat that neither can handle alone.
An interesting plot could involve an anti - hero who has a hidden agenda that is not entirely evil but also not in line with the traditional hero goals. Maybe they are trying to expose a corrupt part of the hero society from within. They could form alliances with some villains who also have a vendetta against the corrupt elements. This would create a complex web of relationships and moral dilemmas.
One idea could be a crossover where the students from Little Witch Academia visit UA High. They could participate in a joint training exercise. The witches could use their magic in creative ways during combat scenarios, while the heroes-in-training show off their quirks. It would be a fun mix of different powers and personalities.
One idea could be a mystery in the dorms. For example, strange things start happening like items going missing or strange noises at night. The students could team up to solve it, using their different quirks in the process. Another plot could be a friendly competition between the dorm floors, like a quirk - based Olympics. This would show off their abilities and also strengthen the bonds between the students.