A possible plotline is a love triangle. Maybe another character has feelings for Evergreen and Elfman has to compete for her affection. This could create a lot of drama and tension in the fanfiction. For instance, the other character could be constantly trying to undermine Elfman in Evergreen's eyes.
In some fanfictions, they could participate in a guild - wide competition. While competing, they form an alliance and start to communicate more. They find out that they have a lot in common, like their love for the guild and their desire to become stronger. This shared ground could be the basis for their relationship to develop in the story.
One possible plot could be that Elfman and Evergreen are assigned on a mission together in the Fairy Tail guild. At first, they bicker as they have different approaches. Elfman is more about brute strength and Evergreen is more tactical. But as the mission progresses, they start to see the value in each other's methods. They face a powerful dark mage, and in the heat of the battle, they realize their feelings for each other, leading to a new relationship within the guild.
One idea could be that Elfman and Evergreen are sent on a mission together alone. They start off bickering as usual, but as they face various challenges, they begin to understand each other better. For example, they have to work together to defeat a powerful dark mage. During this time, Elfman discovers Evergreen's insecurities behind her tough exterior, and Evergreen realizes that Elfman is not just a brute but has a kind heart.
Elfman's development could involve him becoming more confident in his non - physical abilities. With Evergreen's influence, he could explore his magical side more deeply. He might start to study different types of magic that Evergreen introduces him to. Evergreen could be developed to be more empathetic. As she gets closer to Elfman, she realizes that his simple view of the world has its own charm. She could start to be more involved in the guild's more physical activities, like helping with building repairs, which she would never have considered before.
They could start by having common goals. For instance, if the guild is in danger, they both contribute in their own ways and start to respect each other's abilities more. This mutual respect can be the foundation for a deeper relationship.
One common theme is the exploration of their relationship development. Since they are both characters from Fairy Tail, many fanfictions focus on how they get to know each other better and fall in love.
One common theme could be the exploration of their different personalities. Elfman is often seen as strong and a bit gruff, while Evergreen is more elegant and mysterious. Their relationship might be about how they balance each other out.
Another theme might be the challenges they face as a couple, perhaps due to their different personalities or the expectations within their fictional world. For example, Elfman's tough - guy exterior and Evergreen's more aloof nature could create some interesting conflicts in a relationship.
One great Evergreen x Elfman fanfic could be 'The Green and the Gray', which delves into their relationship in a magical setting. It shows how Evergreen's nature - loving side and Elfman's tough exterior interact in a unique way.