What are some interesting ideas for a Fullmetal Alchemist OC fanfiction?

Another idea might be alternative endings. Fanfiction often plays with the concept of 'what if' things had gone differently. Maybe if Edward had not been able to regain his brother's body, how would he have coped and what new path would his life take?

One idea could be exploring Lust's backstory before she became a Homunculus. Maybe she had a human life before and what led to her transformation. Another could be a fanfiction where Lust forms an unlikely alliance with a human alchemist. They could work together to achieve a common goal, like saving a town from a greater evil.

The OC could be an undercover agent sent to spy on Roy Mustang. However, as she gets to know him better, she realizes that he's not the power - hungry military man she was led to believe. Roy, on the other hand, discovers her true identity but instead of turning her in, he tries to convince her to join his side. This back - and - forth dynamic can lead to a very engaging fanfiction with a romantic subplot.

The plot could involve the OC being a alchemist on a quest for a powerful alchemy item. Greed, sensing an opportunity for himself, joins the OC. Along the way, they encounter various enemies and obstacles. For instance, they might have to face off against other homunculi who don't want Greed interfering in their plans. The relationship between Greed and the OC could start off as a simple partnership but evolve into a deep friendship or more as they rely on each other to survive.

One idea could be the alchemist using gamer skills to unlock new alchemical formulas faster. For example, they might complete certain quests in a virtual - like world within the fanfiction to gain knowledge of rare alchemical combinations.

One idea could be a crossover where Naruto's chakra system somehow gets intertwined with Alchemy. For example, Naruto could learn to transmute his chakra into different elements in a more alchemical way rather than just using ninjutsu. Another could be that characters from both universes meet in a strange in - between dimension. Maybe Sasuke and Edward Elric could have an intense battle or a deep conversation about their quests for power and revenge. And perhaps Hinata could learn some alchemical self - defense techniques from Winry Rockbell.

One idea could be a crossover where Harry Potter characters end up in the world of Fullmetal Alchemist. For example, Harry could use his magic in Amestris and face the challenges there. Another could be a story where the alchemy principles are somehow introduced into the Hogwarts curriculum. And a third idea might be a fanfic where a character from Fullmetal Alchemist attends Hogwarts and has to adapt to the magical world.

One plot idea could be an OC who is secretly searching for a way to reverse the effects of human transmutation without the use of the Philosopher's Stone. They could be an outcast in the alchemist community because of their unorthodox methods. Another idea is an OC who discovers a hidden alchemical society that has been operating in the shadows, with their own set of rules and secrets that could change the balance of power in the Fullmetal Alchemist world. A third plot idea could be an OC who has the ability to see the souls of those who have been affected by alchemy, and they use this ability to solve mysteries related to past alchemical experiments.

Here's a plot idea. The male OC is an alchemist who has a special connection to the Truth. He starts having visions of a coming catastrophe that is related to the misuse of alchemy. He has to convince the other alchemists, including Edward and Alphonse, that this is real and they need to work together to prevent it. This could involve him traveling across the country, facing various challenges and enemies along the way. Another plot could be that he's a foreign alchemist who comes to Amestris to study their alchemy. But he soon realizes that there are dark secrets within the Amestrian alchemical community that he must expose.

One plot idea could be Scar crossing over into a world where alchemy doesn't exist, and he has to adapt to a completely different form of combat and magic. Another is a crossover with a modern - day world, and Scar has to deal with modern technology and society while still holding onto his beliefs.