If Luffy and Law traveled to a time when piracy was in its infancy, Luffy would be like a wild force of nature. His exuberance and disregard for the status quo would be both inspiring and concerning to those around him. Law, with his knowledge of modern medicine and combat, would seem like a wizard from the future. In a future time where the world is more united against threats, Luffy's individualistic approach might be at odds with the collective mindset. But his ability to inspire would still be there. Law would need to adapt his loner - like tendencies as cooperation would be more emphasized in such a future. He would likely be very interested in the future's understanding of the human body and how it could enhance his abilities as a doctor and fighter.
In the past, Luffy would likely be even more of a novelty. His fearless and somewhat naive attitude would stand out in an era where pirates were perhaps more cutthroat and calculating. He might bring a sense of hope and a different way of thinking to those around him. Law, in the past, could be seen as a bit of an enigma. His quiet and strategic nature might make him seem like a dangerous wildcard. In the future, Luffy could struggle to adapt to new social norms, but his unwavering loyalty and determination would still shine through. Law might be more intrigued by the future's medical advancements and would be eager to learn and incorporate new knowledge into his own skills.
Natsu, being his impulsive self, might initially have a hard time adjusting to more reserved time periods. For example, in a time when magic was more secretive and not used so openly, he might constantly be getting into trouble for showing off his powers. Ultear, on the other hand, who is more calculating, might find it easier to blend in. But in a more chaotic time period, like during a war, Ultear's calm demeanor could be shaken as she has to face more extreme situations. In a peaceful future time, Natsu might become more laid - back as there's no need for constant fighting, while Ultear might feel a bit out of place without her usual problems to solve.
His combat abilities might be overpowered in some earlier time periods where the fighting styles are less developed. For example, if he travels back to a time when lightsaber combat was more rudimentary, his advanced techniques could make him seem like a god of war.
In a time period during the height of the Covenant War but in a different theater of war, his abilities would be put to different tests. He might face different Covenant species or new strategies. His ability to adapt and his leadership skills would be crucial. His physical abilities would remain a great asset, but he'd have to use them in new and creative ways to deal with the changing battlefield dynamics.
In earlier time periods, like the medieval times of the wizarding world, their relationship might be more formal at first. They'd be outsiders in that time, so they'd rely on each other more. Fleur's Veela charm might be seen as more of a novelty or even a threat in that era, which could make Harry more protective of her. This would strengthen their bond.
Sakura might become more reserved in an older time period as the social norms were different. She is used to the more modern and open ninja world. Shisui, on the other hand, might feel more at home initially as he is from a more traditional Uchiha background. But he could also be frustrated by the lack of modern conveniences and more rigid social structures.
Hermione's personality would likely be a bit more restricted in an earlier time period. She's used to speaking her mind and being an equal in the wizarding world of her own time. But in the past, as a Muggle - born, she might have to be more cautious. Lucius, on the other hand, would probably be more powerful and confident in a time when pure - bloods held more sway. He might be even more haughty and dismissive of those he considered beneath him. However, as they spend more time in the different time period together, they could start to influence each other. Hermione could make Lucius question some of his pure - blood prejudices, and Lucius could teach Hermione how to better navigate the social hierarchies of the past.
If Natsu travels to a time when Fairy Tail was just starting, he would be more eager to prove himself. His competitive side would be even stronger. In a more distant past, like when dragons were still around, he might be more in awe and a bit more reserved as he encounters these powerful and mysterious creatures. In a future where magic has evolved, he could be a bit out of place at first, but then adapt and become more open - minded to new forms of magic.
Luffy's carefree and adventurous nature would make him eager to explore the new time period. He'd probably jump into any situation without much thought, which could lead to both trouble and amazing discoveries. For example, he might accidentally disrupt an important historical event because he's so excited to see what's going on.
Robin, being more reserved and knowledge - seeking, would approach the time travel with a more cautious and inquisitive mindset. She would be interested in learning about the history and culture of the different eras. Her calm nature could balance out Luffy's impulsiveness. For instance, when Luffy wants to rush into a dangerous place, Robin might stop him and suggest they gather more information first.
Judy Hopps, being an adaptable bunny, would likely quickly adjust to different time periods. In the past, she might be initially shocked by the more primitive ways but would soon use her problem - solving skills. For example, if she went back to a time before modern technology in Zootopia, she could use her natural instincts and basic tools to get by. Nick Wilde, on the other hand, would probably rely on his charm. In a more old - fashioned Zootopia, he might use his smooth - talking to blend in and find his way around.