One common theme is self - discovery. The OC, being a gamer in a new world like My Hero Academia, often has to figure out their place and abilities. Another theme is power - up. Just like in games, the OC usually gets stronger over time.
A prevalent theme is the combination of gaming mechanics and heroics. For instance, the OC might have a leveling system like in games which they use to improve their hero skills. Also, the theme of friendship and rivalry is common. The OC will make friends and enemies within the hero academy, similar to how characters interact in the original My Hero Academia. They have to balance their new - found abilities with their relationships.
Another theme is self - discovery. The grey OC has to figure out who they are and what they stand for. They're not following the typical hero or villain path, so they have to create their own identity. This often involves exploring their powers, their values, and their place in the world of My Hero Academia.
Love and romance can be a theme as well. The SI/OC could fall in love with one of the characters from the original series. It could be a slow - burn relationship with lots of obstacles, like differences in their hero goals or social status within the hero community. This adds a whole new layer of drama to the fanfiction.
One good trait is being highly observant. Gamers are used to noticing small details in games, and in the MHA world, this could translate to quickly spotting villains' weak points. Another is adaptability. Just like in games where situations change rapidly, your OC can adapt to different battle scenarios. And determination. If they're used to grinding in games to reach high levels, they'll have the same tenacity when facing tough opponents as a hero.
A lot of these fanfictions also deal with the theme of acceptance. The OCs may have to accept their own feelings for another female character in a world that might not be fully accepting. It could be about coming out or just dealing with internalized homophobia. Additionally, there's often the theme of teamwork. Since My Hero Academia is about heroes, the femslash pairings might be heroes who have to work together and their relationship develops during their heroic deeds.
One popular trope is the 'Gamer Underdog'. The OC is underestimated because their gaming - related quirk seems silly at first, but they prove everyone wrong. Another is the 'Gaming Team - up'. The OC teams up with other heroes who also have quirks that can be useful in a game - like scenario, like a hero who can create mazes and they work together in a virtual - reality - based mission. There's also the 'Gamer Upgrade' trope, where the OC continuously levels up their quirk through gaming - like challenges within the hero world.
One common theme is the corruption within the hero society. Your dark OC can be a tool to expose the seedy underbelly of how heroes are really like. Another theme is the struggle between good and evil, but from the perspective of the OC who might not see things in such black - and - white terms. Revenge is also a popular theme. Maybe the OC has a vendetta against a certain hero or the hero system in general.
First, give your OC (Original Character) a unique quirk. It should be different from the existing ones in My Hero Academia. For example, a quirk that allows them to manipulate virtual reality within the real world. Then, develop their backstory. Maybe they were an avid gamer before getting their quirk and this influenced how they use it. Also, think about their personality. Are they confident like Bakugo or more laid - back like Sero? By focusing on these aspects, you can create an interesting OC for your fanfiction.
First, think about your OC's unique gaming abilities within the My Hero Academia universe. For example, they could have a quirk related to video game mechanics like 'Save Point' where they can rewind time a bit. Then, create a conflict. Maybe they're competing in a hero - gamer tournament against villains in disguise. Another key is to incorporate the existing MHA characters in interesting ways, like having them be mentors or rivals to your OC.
Another common theme is the idea of a different perspective. Fanfictions may show events from the Hero Killer's point of view, which is different from the typical hero - centered view in the original series. This can make readers see the world of My Hero Academia in a new light, understanding the frustrations and reasons that led the Hero Killer to do what he did. It can also create more complex relationships between characters as they start to understand each other's motives better.
The theme of overcoming obstacles is very common. In these fanfictions, the lesbian couple has to overcome various obstacles like discrimination from other students or even some of the teachers. They also have to deal with the challenges of being heroes at the same time. For instance, they might have to hide their relationship while on a joint mission to avoid negative reactions from their teammates. This creates a lot of tension and drama in the story, which is a key part of many of these fanfictions.