Who would be the most interesting character pairings in a 'D Gray - Man meets Harry Potter' fanfiction?

Allen Walker and Natsu Dragneel would make an interesting pairing. Allen has his serious and brooding nature due to his past as an Exorcist, while Natsu is hot - headed and impulsive. They could learn a lot from each other. Allen could teach Natsu about the importance of self - control in a fight, and Natsu could show Allen how to have more fun and not be so burdened by his responsibilities all the time.

Hermione Granger and Weiss Schnee could be a great pair. Hermione is highly intelligent and studious, while Weiss is refined and also has a great deal of knowledge. They could bond over their love for learning and perhaps work together on some sort of magical - mechanical hybrid project. For example, combining Hermione's magic knowledge with Weiss' understanding of Dust to create something entirely new.

Lavi and Edward Elric. Lavi is always curious and loves to explore different things, which is similar to Edward's thirst for knowledge. They could bond over their shared love of books (since Lavi is a Bookman) and also their quests for the truth. Edward could help Lavi understand more about alchemy, while Lavi could introduce Edward to the world of Innocence and exorcism.

Harry and Elsa would be a very interesting pairing. Harry, with his experience in facing dark magic, could offer Elsa a new perspective on her powers which she has always seen as a curse. And Elsa, with her ice powers, could show Harry a different kind of magic that he's not used to in the wizarding world. Another interesting pairing would be Ron and Kristoff. They both have a simple - minded charm and could get into all sorts of funny situations together, like getting lost in the Forbidden Forest or on the mountains in Arendelle. Also, Hermione and Anna would be great. Hermione's intelligence and Anna's determination would make them a formidable duo as they try to solve problems in both their worlds.

I think Harry Potter and Nick Burkhardt would be an interesting pairing. Harry has his experience with fighting dark magic and Nick has his knowledge of the Wesen world. They could learn a lot from each other. Harry could teach Nick about some of the more complex spells, while Nick could introduce Harry to the different types of Wesen and how to deal with them.

I think Luna Lovegood and Prompto would make a really fun pairing. Luna has her unique and somewhat otherworldly view of things, and Prompto is the cheerful and energetic one in the FFXV group. They could have some really interesting conversations about the strange creatures in both their worlds. Also, Severus Snape and Gladio could be an unexpected but fascinating pairing. Snape's dark and brooding nature contrasted with Gladio's tough and protective side.

One idea could be that the Exorcists from D Gray - Man end up in the wizarding world of Harry Potter. They might team up with the Order of the Phoenix to fight against a new threat that combines the dark magic of the Death Eaters and the Akuma from D Gray - Man.

Hermione Granger and Rukia Kuchiki could make a great pairing. Hermione is extremely intelligent and well - versed in magic theory. Rukia, on the other hand, has a deep understanding of the spiritual world. They could collaborate on researching a strange phenomenon that is occurring between the two worlds, like a merging of certain spells and Soul Reaper techniques. Their different personalities would also create some interesting interactions, with Hermione being more outspoken and Rukia more reserved.

I think Buffy and Hermione would make an interesting pairing. Hermione's intelligence and knowledge of magic combined with Buffy's combat skills could lead to some great adventures. They could learn a lot from each other.

Hermione and Death could be an interesting pairing. Hermione is known for her intelligence and thirst for knowledge. Death, being an all - powerful entity in the Darksiders universe, could have a lot of knowledge that Hermione would be eager to learn. Their conversations would likely be deep and thought - provoking as she tries to understand the nature of death from his perspective.