The plot could involve Harry Potter being sent on a mission like Allen Walker. He might have to travel to different dimensions, using his magic skills along with Allen Walker - like abilities. For instance, he could use his Patronus to combat the dark forces that are similar to the Noah family in D.Gray - man. It would be a blend of the magical world of Harry Potter and the dark - fantasy world of D.Gray - man.
In 'harry potter allen walker fanfiction', Harry Potter is likely to be a popular character because he represents the magic and heroism of his own world. Allen Walker is a must - be - there character as it's part of the title. Additionally, characters like Ron Weasley could be popular. He has his own charm and sense of humor, and his friendship with Harry could add interesting dynamics when interacting with the characters from Allen Walker's story.
One interesting concept could be the magical world of Harry Potter intersecting with the dark and complex world of Allen Walker. For example, perhaps the Death Eaters' dark magic being compared or combined with the Akuma in Allen Walker's story. It might also involve characters from both universes teaming up to fight a common, even more powerful evil that threatens both their worlds.
I'm not sure if it's a very popular concept. Harry Potter and Allen Walker are from two very different universes. Harry Potter has its own vast and rich lore within the wizarding world, and Allen Walker is from D.Gray - man. While in the world of fanfiction anything can be created, it might be a rather niche idea.
In some fanfictions, Allen's internal struggle with his cursed eye and the fear of losing himself can be very moving. He often has moments of self - doubt and despair, which are painful to read about. For example, when he isolates himself from his friends because he doesn't want to put them in danger due to his condition.
Well, Tyki Mikk is a very memorable character. Even though he is on the side of the demons, his charm and his complex relationship with Allen Walker make him an interesting character in the fanfiction. Another is Bookman, who has a wealth of knowledge and is like a mentor figure to some of the male exorcists. His wisdom and his mysterious air add to his memorability.
One interesting Allen Walker fanfiction could be about his further adventures in a world where the Earl has been defeated but new threats emerge. It might explore his relationships with the other exorcists in a more in - depth way, like how he and Lavi become even closer friends and partners in maintaining the new - found peace.
One great 'Female Allen Walker Fanfiction' is 'A Different Path for Allen'. It explores what would happen if Allen was a female in a more modern - day setting within the D.Gray - man universe. The story focuses on her relationships and how she copes with her Innocence in a changed world.
I'm not sure specifically as it depends on how the fanfiction is written. But surely Harry Potter would be one of the main characters. There might also be a character related to the 'walker' concept who could be a central figure, perhaps someone who has a special connection to this 'walker' identity and interacts closely with Harry and his friends.
One common theme is the exploration of different relationships. For example, how the female Allen Walker would interact with other characters in a more romantic or platonic way. Another theme could be her struggle with her identity, given the change in gender. It might also involve her dealing with the same dark and supernatural elements as in the original story but with a different perspective as a female.