In a crossover fanfiction, the characters would interact in very interesting ways. The Persona 4 characters, known for their focus on relationships and solving mysteries in their small town, would bring a sense of community and warmth. The Persona 5 characters, with their edgy and rebellious nature, would add a bit of excitement and a different perspective on fighting against the system. The Persona 3 characters, having dealt with themes of death and the end of the world, would have a more solemn and profound influence. For instance, Yosuke from Persona 4 might be a bit jealous of Ryuji's athleticism from Persona 5 at first, but then they become friends as they realize they both have a strong sense of loyalty to their friends. And Aigis from Persona 3 could be a source of great knowledge about the Shadows for the others, as she has unique insights due to her nature as a robot.
The characters would likely have a mix of admiration and friendly rivalry. For example, the cool and collected protagonist of Persona 5 might be intrigued by the more laid - back nature of the Persona 4 protagonist. Meanwhile, the Persona 3 protagonist, with his more somber and serious demeanor, could initially seem a bit intimidating to the others. But as they get to know each other, they would start to bond over their shared experiences of fighting Shadows and protecting their worlds.
The characters would likely be initially cautious. For example, Yu from Persona 4 might be a bit reserved when meeting Joker from Persona 5, but as they learn about each other's goals, they would start to trust. Yosuke might be excited to see the more high - tech Metaverse compared to the TV World, and he could bond with Ryuji over their shared love for adventure. Chie would probably challenge Ann to a fight at first, thinking she's just a pretty face, but then realize Ann's strength.
Some characters might not get along so well. For instance, a more serious Persona character might find Joker's carefree attitude a bit off - putting. However, as they face challenges together, they would start to understand and respect each other. The Persona characters could introduce Joker and his friends to the concept of the Collective Unconscious in more detail, and the Phantom Thieves could show them how to use their skills in a more urban, modern - day setting. There would be a lot of banter and friendly competition between the two groups as they learn from each other.
Joker, the main character of Persona 5, might be initially cautious around Kirby. Kirby's round and friendly appearance might make Joker lower his guard after a while. He could then show Kirby how to use a Persona, if Kirby was interested.
The interaction could be full of humor and action. Imagine Skull from Persona 5 challenging Saitama to a fight, not fully understanding the extent of Saitama's power. Saitama would probably just knock him out with one punch in a comical way. But then the Persona 5 characters could show Saitama the value of teamwork and strategy, which he might not be used to in his solo fighting style. They could also introduce him to their world, and Saitama could introduce them to the strange and wacky world of One Punch Man heroes and villains.
The 1987 Turtles would probably be very curious about the more serious and intense 2003 Turtles. They might crack jokes at first to ease the tension, while the 2003 Turtles could be a bit annoyed by their silliness. But as they face challenges together, they'd start to respect each other. For example, when fighting Foot Soldiers, the 1987 Turtles' acrobatic and fun - loving fighting style could complement the 2003 Turtles' more strategic and brutal combat.
In a crossover, the RWBY characters would have to adapt to Doflamingo's powers. Yang's hot - tempered nature might lead her to engage in a direct fight with Doflamingo, which could be both dangerous and exciting. Weiss would use her intelligence and her family's resources to try to find a weakness in Doflamingo. Ruby, with her innocent yet determined personality, would try to find a way to redeem Doflamingo if possible, but if not, she'd be fully committed to taking him down.
The Naruto characters are used to a world of ninjastic and chakra - based powers. When they meet the Claymore characters, who have a different set of powers based on their yoma - human nature, there would be initial confusion. For example, Naruto might be very curious about the Claymore swords and how they are used. The Claymore characters, like Clare, would be cautious about Naruto's exuberant personality and his powerful chakra. But eventually, they could learn from each other. Naruto could teach them about teamwork in a different way than they are used to in the Claymore world, and the Claymores could show Naruto how to be more stealthy and precise like they are when hunting yoma.
Sasuke from Naruto might initially be distrustful of Lucifer. He's used to dealing with his own world's threats and Lucifer's devilish appearance and powers would make him cautious. But if they find a common goal, like protecting someone or something, Sasuke could grudgingly work with him. Naruto, on the other hand, would be more open - minded and try to befriend Lucifer right away.
Sakura from Naruto and Masane from Witchblade could have an interesting interaction. Sakura, being a strong - willed and skilled medical ninja, might be intrigued by Masane's connection to the Witchblade. She could try to study it from a medical perspective. And Masane could teach Sakura some new combat moves that are more brutal and less refined than the ninja techniques Sakura is used to.
Well, Naruto, being the friendly and curious character he is, would probably be very interested in the Gargoyles. He'd likely approach them with excitement and ask a million questions. The Gargoyles, on the other hand, might be a bit more reserved at first. But once they see Naruto's good intentions, they'd start to open up. For example, Naruto might be fascinated by the Gargoyles' ability to turn to stone during the day and would want to learn if there's any chakra involved in that.