There's 'A New Hope for UA' which is also a very good MHA OC fanfiction. In this, the OC has a quirk that is initially seen as weak but they manage to use it in innovative ways. The fanfiction does a great job of integrating the OC into the existing MHA universe, with lots of references to the original series.
One great Merlin OC fanfiction is 'The Lost Heir'. It has an interesting original character who gets involved in Merlin's adventures in Camelot. The character's backstory is well - developed and adds a new dimension to the familiar Merlin universe.
A popular one is 'The OC in Dexter's World'. This fanfiction weaves an interesting story around the original character. It explores how the OC impacts Dexter's life and his 'dark passenger'. It has some really intense and thrilling moments that keep readers hooked.
Some MHA reaction fanfictions focus on the characters reacting to fan - made scenarios, like a tournament designed by a super - fan. In these, the characters' unique personalities shine as they comment on the rules, opponents, and the overall wackiness of the situation.
A popular MHA crossover fanfic is 'MHA and Harry Potter: Hogwarts Heroes'. It imagines the MHA students attending Hogwarts. The fanfic is filled with cool moments like seeing Bakugo try to out - do the Gryffindors in their own house. It also has some great magical - quirk combinations. 'MHA x Fullmetal Alchemist: Alchemical Heroes' is also quite good. It mixes the alchemical world of FMA with the hero - filled world of MHA, creating new storylines and character developments as the MHA characters interact with the Elric brothers.
Well, you could have an MHA OC who is a villain - turned - hero. Their backstory could involve being mistreated and turning to villainy, but then being inspired by the heroes to change their ways. Maybe they have a quirk that involves shadow manipulation, which they used for evil before but now use for good. Or an OC that is a tech - genius and creates their own high - tech hero gear, much like Mei Hatsume but with their own unique style. Also, an OC with a healing quirk could be interesting, especially if they have to deal with the moral dilemma of whether to heal villains or not.
A lot of MHA female OC fanfiction involves the OC being part of a team. For instance, she could be in a team with some of the less - prominent characters from the original series and they go on to do heroic deeds. Some stories focus on the female OC's journey to master her quirk, perhaps with the help of an older, more experienced hero. There are also those that explore the OC's family background and how it ties into her life as a hero - in - training, like if her family has a history of quirks that were once feared or misunderstood.
One good MHA fanfiction is 'The Unseen Hero'. It focuses on a side character who has an overlooked but very powerful quirk. The story delves deep into their journey of self - discovery and how they strive to make a name for themselves in the hero - filled world of MHA.
In MHA villain OC fanfiction, a mistake is not giving the villain OC a clear motivation. Just being evil for the sake of it is boring. Their actions should be driven by something, like a desire for revenge or power. Don't make their design too outlandish that it doesn't seem like it belongs in the MHA world. And don't forget about character development. If the villain OC is just static throughout the story, it won't be engaging. They should grow or change in some way, even if it's a downward spiral into more evil.
One common theme is self - discovery. The reincarnated OC often has to figure out who they are in this new world and how their previous life and new circumstances interact. Another is the struggle for power. Since the MHA world is centered around quirks, the OC usually has to find a way to gain power or use their unique skills.
One reason is the novelty. It offers a different take on a well - known character. People are always curious to see how a change in gender can impact the character's story and relationships.