One idea could be that the OC is a new hero in training and Superboy takes them under his wing. They go on adventures together, facing off against new villains in the city.
Maybe the OC has a special power that Superboy needs to help him control. Their relationship develops as they work on mastering this power. For example, the OC could have the power to manipulate time in small bursts, but it's unstable, and Superboy uses his experience to guide the OC.
One idea could be that the OC is a time - traveler from a future where Madara's actions had led to a desolate world. The OC tries to change Madara's path. Another could be the OC is a healer who stumbles upon a wounded Madara and nurses him back to health, leading to an unexpected bond. Or perhaps the OC has a unique power that Madara is intrigued by and he tries to use it for his own purposes at first but then develops real feelings for the OC.
One idea could be that the OC is a powerful witch who gets caught in the middle of the Salvatore - Rebekah drama. She might initially befriend Rebekah, not knowing her full vampire nature, and then fall for one of the Salvatores. This creates a love triangle full of supernatural twists.
A third idea could be an OC who is an artist. The OC could be hired to paint a portrait of the sisters. During the process, the OC gets to know them on a deeper level. The sisters are intrigued by the OC's creative process and start to develop feelings for the OC. This could lead to a complex love triangle - like situation where the OC has to navigate their feelings for the two sisters while also dealing with their own artistic goals.
The OC could be a former assassin who has given up his old ways. He crosses paths with Yona's group when they are being hunted by a powerful enemy. He uses his skills to protect them. Yona is hesitant at first to trust him, but as she sees his genuine remorse for his past actions and his dedication to their cause, she accepts him into the group. Together, they face the challenges of not only the external threats but also the internal struggles within the group as they adjust to having an ex - assassin among them.
Well, an interesting plot could be that the OC is a transfer student who is secretly a vampire hunter but falls in love with a vampire at the academy. It would create a great internal conflict for the character. Also, the OC could be a half - vampire, half - human who is trying to find her place in both worlds. Maybe she has an ability that neither vampires nor humans have, like the power to heal vampire bites on humans. This would make her a target for both sides who want to use her power for their own purposes.
Maybe an OC who has the power of telepathy but in a very unique way. Instead of just reading minds, they can project their thoughts into the dreams of others. This OC could be used to either help the X - Men by warning them of threats through their dreams or be a villain who uses it to plant false ideas in their heads. They could have a complex backstory about how they developed this power and why they choose to use it in the way they do.
A mystery - themed 'the oc fanfic' would also be great. Maybe there's a mystery surrounding the Cohen family's wealth or a long - lost relative that suddenly shows up with a hidden agenda. The characters would have to work together to solve the mystery, and in the process, their relationships would be tested and new alliances formed.
One idea could be exploring an OC's (Original Character) journey to become a leader within the 100's post - apocalyptic world. They could start as an outcast and through their unique skills, like advanced medical knowledge or exceptional hunting abilities, gain the respect of different factions.
Perhaps in the fanfiction, Superboy visits a parallel universe where everything is lemon - scented and lemon - colored. There, he meets an alternate version of himself who has a special connection to lemons, like being able to draw power from them. They team up to fight a common threat that is trying to destroy both universes.
One idea could be that the OC is a powerful mage from a far - off land who comes to Arendelle during a time of new danger. The OC meets Elsa and they initially have a bit of a clash due to their different ways of using magic. But as they face the new threat together, they start to understand and respect each other more. Eventually, they combine their magical powers to save Arendelle and in the process, form a deep friendship or even more.