Often, these fanfics will have them going on adventures together. It's about how they support each other during difficult times. And they usually explore the different sides of their personalities. Allen's serious side and Lavi's more laid - back side create a lot of interesting dynamics in the stories.
I'm not entirely sure as I haven't read it in detail, but generally it likely involves the adventures of Lavi in the D.Gray - man universe. It might include his interactions with other characters, his battles against the Akuma, and his journey in uncovering the secrets of the world he's in.
Friendship is a very common theme. Lavi and Allen are often depicted as having a strong bond of friendship that can overcome many difficulties. For example, in some fanfics, they face a powerful enemy together and their friendship is what gives them the strength to fight.
The main character is Lavi. But we can't forget about the other exorcists. Kanda Yuu, for example, could be in the story. His relationship with Lavi is an interesting aspect. And then there are the higher - ups in the Black Order. They might be involved in the plot as they often give orders and shape the events that the exorcists are part of. Also, the Earl of Millennium, as the main villain in the D.Gray - man world, could have some sort of connection to the events in the light novel related to Lavi.
One common theme is adventure. Given that Lavi is often involved in various adventures in the original work, fanfictions may continue this trend with the reader character joining him on exciting quests.
One common theme is friendship development. Given their relationship in the original work, many fanfics explore how their friendship could deepen and change over time. Another is adventure. Since they are often involved in battles and quests in the original story, fanfics might continue those adventures or create new ones for them.
Sure. You can try searching on popular fanfiction websites like Archive of Our Own (AO3). There are often many well - written lavi x reader fanfictions there. Just use the search function and type in 'lavi x reader' to find a variety of stories with different themes and styles.
One popular lavi x allen fanfic is 'The Bond Beyond'. It delves deep into their relationship, showing how they support each other through various challenges in a fictional adventure. The story has great character development and some really heart - warming moments between Lavi and Allen.
Another great one is 'The Allen - Lavi Alliance'. In this fanfic, they team up to solve a mystery that has been plaguing their world. The author does an excellent job of portraying their friendship and the trust that develops between them over time.
Many D Gray - Man Noah Lavi fanfics also touch on the theme of sacrifice. Given the dangerous nature of the world in D Gray - Man, Lavi may be put in situations where he has to sacrifice something - it could be his own safety, his relationships, or even parts of his identity. Writers like to explore how he copes with these difficult choices and what the consequences are for him and those around him.