A lot of anti - hero OCs have a sense of justice that is different from the mainstream heroes. They might not care about fame or public approval like the heroes do. Instead, they focus on what they think is right, which could involve breaking some laws or going against the hero establishment. Their appearance might also be more edgy or different from the clean - cut hero look. They could have a more 'street - smart' attitude rather than the polished hero demeanor.
First, give your OC a unique quirk that has both strengths and flaws. For example, a quirk that can control fire but has a time limit. Then, develop a backstory that explains why they become an anti - hero. Maybe they've been wronged by society or have a different view of heroism. Also, think about their relationships with other characters in the My Hero Academia world. Do they have friends among the villains or heroes? This can add depth to their character.
There's also 'Anti - Hero Among Heroes'. In this fanfiction, the OC anti - hero challenges the traditional hero - villain dichotomy in the My Hero Academia universe. The story delves deep into how society views such a character and how the OC navigates through a world that doesn't quite understand them. It's full of action - packed scenes and thought - provoking moments.
First, give them a backstory. It could be something tragic like being bullied in school because of their quirk and then feeling abandoned by the hero system. This would fuel their anti - hero/villain mentality. For example, if their quirk was something that made them look different, they might have been shunned by society and heroes alike.
Stain could be considered as an anti - hero in fanfiction. His extreme views on heroes, while not entirely acceptable, could be delved into deeper. He believes that only true heroes should be recognized and is willing to take extreme measures to prove his point. A fanfiction could explore a different side of him, perhaps one where his actions are more nuanced.
A popular trope for OC anti - heroes in My Hero Academia fanfiction is the 'Secret Identity'. They might have a normal - looking civilian identity and then transform into their anti - hero persona when the situation calls for it. This adds an element of mystery. The 'Powerful but Unstable' trope is also common. Their quirk could be extremely powerful but difficult to control, which sometimes makes them a danger to themselves and others. This can lead to interesting storylines where they have to learn to master their power while also dealing with the world's perception of them.
Another concept could be an OC anti - villain with a unique quirk that is often misunderstood. Their actions seem villainous on the surface, like stealing resources from big corporations. But in reality, they are redistributing those resources to the poor or underprivileged areas that the heroes and the government have overlooked. So, they are kind of like a Robin Hood - type anti - villain in the My Hero Academia universe.
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.
First, think about their Saiyan powers and how they would translate in the My Hero Academia world. For example, a Saiyan's ability to increase power level could be like a quirk that gets stronger over time. Consider their backstory, like maybe they're a Saiyan from another planet who ends up in the MHA world. Also, their appearance can combine Saiyan features like a tail and spiky hair with the MHA style of clothing.
One plot idea could be that the Saiyan OC is mistaken for a new type of villain at first. As they try to prove they're not a threat, they start to make friends and learn about heroism. Another idea is that they discover a connection between Saiyan powers and some of the hidden secrets in the MHA world. Maybe there's an ancient power source that only a Saiyan can unlock.