My Hero Academia SI Fanfiction: What are some popular plot ideas?

One popular plot idea could be American heroes teaming up with the Japanese heroes from the original My Hero Academia. For example, they might join forces to combat a new super - villain threat that is spreading across both countries. Another idea could be an American student with a unique quirk transferring to U.A. High School in Japan and having to adjust to the different hero - training culture there.

One great plot idea is having your SI OC be a transfer student from a foreign hero school. They bring in new techniques and a different perspective on heroics. Another idea could be that your OC has a quirk that is initially seen as a villain's quirk, and they have to prove that it can be used for good. For example, a quirk that allows them to control minds but they use it only for interrogation purposes in hero work.

How about a fanfiction where the villains and heroes have to team up? There could be a greater threat, like an alien invasion or a powerful quirk - user who is out to destroy the entire world. The heroes and villains realize that they can't defeat this threat alone, so they put aside their differences. This would lead to some really interesting character interactions, like Bakugo having to work with Shigaraki and both of them learning to respect each other's skills despite their opposing natures.

One popular plot idea could be a training session gone wrong. Katsuki's brashness and Ochako's determination clash during a joint training exercise, but this conflict eventually leads to a deeper understanding of each other. Another idea is a mission where they are forced to rely on each other. In a dangerous situation, Katsuki's power and Ochako's unique quirk work together in unexpected ways, sparking new feelings between them. A third idea could be a school event where they get paired up for a project. They start off at odds but as they work on the project, they discover they have more in common than they thought.

One popular idea is the relationship between Midoriya and Bakugo. Fans like to explore how their complex dynamic could develop into something more in a slash context. Another is Todoroki and Deku, imagining their friendship evolving into a romantic relationship. And also Kirishima and Bakugo, as their strong bond can be seen in different ways in slash fanfictions.

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 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.

Maybe a plot where a group of Warhammer heroes are sent to the Hero Academia world to stop a chaos invasion that is starting to seep into that realm. They have to work with the local heroes, sharing their knowledge of dark magic and ancient weapons to combat the new threat. This would involve a lot of cultural clashes and learning experiences between the two groups.

A different idea is that some of the students from U.A. High School go on a field trip to Bikini Bottom. There, they learn about the different 'quirks' the underwater creatures have, like Sandy's ability to live underwater as a squirrel. And at the same time, they have to help SpongeBob and his friends with a problem, like stopping a giant sea monster that the normal underwater heroes can't handle. This would involve a lot of teamwork between the two groups.

An interesting plot could involve an OC who is initially thought to be quirkless but discovers a latent quirk later on. This OC could then struggle to catch up with the others in terms of training and development. Or, an OC with a shapeshifting quirk could be used in a plot where they have to infiltrate a villain's lair by taking on the form of one of the villains' minions. They would have to be careful not to be discovered and also gather intelligence along the way.