One key element is the relationship between them. Whether it's a friendship or something more romantic, it's central to the story. For example, in many fanfictions, David 8's cold, logical nature contrasts with Bella's more emotional and impulsive side, creating an interesting dynamic.
One key element is often the exploration of a new relationship dynamic. Since they are not a canon pairing, it's interesting to see how they interact. Another element can be the alteration of the existing story's setting to fit their relationship.
One key element is the exploration of new storylines. Since David Gaunt is a new addition to the Potter - inspired world, the fanfiction can take the story in different directions. For instance, his backstory might be different from the original Potter characters, and this can lead to unique plot developments. Also, the way his character traits interact with the values of the Potter world, such as courage and friendship, is an important aspect.
One key element is the family bond. Since they are father and daughter, fanfictions often explore the depth of their relationship. Another element could be Charlie's protectiveness over Bella.
Love is a key element. It often shows how Alec and Bella's relationship develops, whether it's a slow - burn or an instant attraction. Another element is the conflict. Since they come from different backgrounds in the Twilight universe, there are often conflicts like Alec's loyalty to the Volturi versus his feelings for Bella.
One key element is the power dynamic. Aro is a powerful vampire and Bella has her own allure. Their relationship often plays around this power imbalance. For example, in many stories, Aro is drawn to Bella's unique mind which he can't fully read. This creates an interesting tension.
Often, a key element is the exploration of their friendship or potential romance. Fanfictions might also focus on how they deal with the other characters in the Twilight saga. For example, how Emmett's loyalty to his family affects his relationship with Bella, or how Bella's connection to Edward influences her interactions with Emmett. In some fanfictions, they might go on adventures together, which is also a significant element as it shows their ability to work as a team.
One key element is the transformation of Bella's character. She goes from the rather passive Bella in the original story to a more assertive and dominant one. For example, she might take charge in dangerous situations instead of waiting for others to save her.
One key element is the relationship dynamic. Usually, it involves Paul's often intense and protective nature towards Bella. Another element is the supernatural aspect if it's in the context of a supernatural world. Their interactions within that world, like dealing with other supernatural beings, are important.
In a more general sense, if it's a fictional David story, the key element could be his character growth. Maybe he starts off as a shy person and gradually becomes more confident through the events in the story. Also, the relationships he has with other characters are important elements, whether they are friends, family or enemies.
Love is a very common theme. Their relationship, whether it's a budding romance or a long - lasting love, is often the focus. Another common theme is adventure. They might go on adventures together, like exploring unknown lands or solving mysteries.