One possible fanfiction could be about Edward and Roy teaming up for a dangerous mission. Maybe they have to infiltrate an enemy stronghold where they discover a new type of alchemy that they've never seen before. Along the way, they start to understand each other better and respect the other's skills.
Well, in fanfiction, Edward and Roy's dynamic can be really interesting. They have different personalities. Edward is young and impulsive, while Roy is more reserved and calculating. This contrast can lead to some really engaging storylines in fanfiction, like when they work together on a mission and Edward's quick actions either save or almost ruin the plan.
Often, fanfiction writers focus on the character growth that can occur through their interactions. Edward, who starts off as a headstrong and somewhat naive alchemist, can learn a great deal from Roy's strategic thinking. Roy, in turn, might be inspired by Edward's unwavering belief in doing what's right, regardless of the consequences. Their relationship could also be a source of conflict, as their personalities and goals don't always align.
Perhaps there is a mystery involving a powerful alchemical artifact. Edward and Roy both get wind of it and decide to work together to find it. Along the journey, they face various obstacles like other alchemists who also want the artifact. They have to use their combined knowledge and skills to outwit their opponents and solve the mystery behind the artifact. As they progress, their relationship evolves from mere acquaintances to comrades who trust each other deeply. This could involve some character development for both of them, with Edward learning more about discipline from Roy and Roy learning about the importance of following one's heart from Edward.
One good fanfic could be 'A Bond Beyond Duty'. It delves deep into the relationship between Riza and Roy, exploring how their shared past and their current positions in the military influence their feelings for each other. The author does a great job of showing the subtleties in their interactions.
Often, flashbacks are used to show how their relationship has roots in the past. They might have shared experiences during their training or early military days that are slowly revealed. This past connection then resurfaces and helps in deepening their present - day relationship. For instance, a fanfic could show how Roy protected Riza from a bully in their academy days, and that event becomes a turning point in their relationship development in the present.
One possible plot development could be Roy guiding Edward in his alchemical studies in a more father - like way. Since Roy is highly skilled in alchemy, he could teach Edward new techniques and help him better understand the principles. Another aspect could be Edward adjusting to a new family - like structure with Roy. He might struggle at first, being used to relying only on himself and Alphonse. There could also be a focus on how their relationship affects the world around them, for example, in their interactions with the military and other alchemists.
The OC could share a similar past with Roy. For example, if they both had a traumatic experience related to the Ishvalan War. This common ground would create an instant bond as they understand each other's pain and guilt. They could then support each other in dealing with their past traumas while falling in love in the process.
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.