Harry's sense of justice would be a strong factor in their interactions. Fred and George, with their love for fun and rule - breaking (in a harmless way mostly), would constantly test Harry's limits. Rance could be the one who comes up with new and unexpected ideas that either bring them all closer together or cause some temporary rifts. Their personalities would create a dynamic where there's always something interesting going on, whether it's a friendly argument, a joint adventure, or a discovery of a new magical concept through their combined viewpoints.
A possible plot is a friendly competition between them. For example, they could have a race using different magical means of transportation around Hogwarts and the surrounding areas. Along the way, they encounter various magical creatures and obstacles that they have to deal with. This could also lead to some character development as they learn from each other's strategies.
Fred is outgoing and mischievous. Hermione is studious and rule - abiding. Their personalities could clash at first. Fred might try to get Hermione to loosen up with his pranks, which could annoy her. But then Hermione could show Fred the importance of being responsible and studying. Eventually, they could find a middle ground where Fred is a bit more serious and Hermione is a bit more fun - loving.
Fred and George are outgoing and mischievous. Hikaru and Kaoru are also quite mischievous but in a different way. Their personalities could blend in that they all love to play pranks. However, there could be clashes too. The twins are used to the wizarding world's rules and chaos, while Hikaru and Kaoru are from a different world. So they might have different views on what's acceptable prank - wise.
Maybe Harry notices some small physical differences. For example, one of them might have a slightly different hair part or a unique freckle pattern.
Harry could be initially wary of George, as he is so different from the people he's used to in the wizarding world. But then he'd come to appreciate George's straightforwardness. Hermione would be fascinated by George's knowledge of the jungle plants and animals, and she might try to learn from him. Ron, on the other hand, would probably be a bit envious of George's physical strength at first.
Harry is brave and impulsive. Minerva is strict and wise. Pomfrey is caring and no - nonsense. Andromeda is independent and strong - willed. Harry might be initially intimidated by Minerva's strictness but respect her wisdom. Pomfrey would likely mother - hen Harry a bit, which he might find both annoying and endearing. Andromeda would be a bit of an enigma to Harry at first, but he'd be drawn to her independent spirit. Minerva and Andromeda could have a mutual respect based on their strength and intelligence.
Harry is brave and determined. Bruce is intelligent but often hesitant due to his fear of the Hulk. Harry might encourage Bruce to be more confident. He could say things like 'You have so much power within you, don't be afraid to use it for good.'
Harry is known for his courage and sense of justice. Arya is strong - willed and vengeful. Their personalities could create an interesting dynamic. Harry might try to temper Arya's thirst for vengeance with his more measured approach to dealing with enemies. Arya, on the other hand, could inspire Harry to be more assertive and less hesitant in some situations. For example, when facing a powerful dark wizard, Arya's no - nonsense attitude could push Harry to act more decisively.
Harry is quite humble and has a strong sense of justice. Tony, on the other hand, is brash and confident. Harry might be a bit put off by Tony's ego at first, but he would also recognize Tony's intelligence. Tony would probably be amused by Harry's naivete in some ways, but also respect his courage.
It's possible that there could be some strain on their relationships. The stress of being in a different time and the fear of changing things could cause arguments. Maybe they have different ideas about what they should do while in the past. For instance, Fred and George might want to have some fun and explore, while Harry is more focused on achieving a specific goal related to the future, which could lead to some friction between them.