Artemis Fowl, being the calculating and often - aloof character that he is, might look down on Percy at first. He might see Percy as a bit of a brute, just charging into battles. However, as he witnesses Percy's loyalty to his friends and his ability to think on his feet in the heat of battle, he would gain a new respect for him. Percy, on the other hand, would be fascinated by Artemis's gadgets and his ability to outwit his enemies with his wits. They would likely have a lot of banter, with Percy making fun of Artemis's overly - complicated plans and Artemis criticizing Percy's lack of strategic thinking in some situations.
I think their interaction would be a bit of a clash at first. Percy is all about the heart and following his gut instincts, which has served him well in his battles against the Titans and other foes. Artemis Fowl, though, is more cerebral, relying on his intellect and the advanced technology at his disposal. But as they get to know each other better, they would start to balance each other out. Percy would learn to be more strategic from Artemis, and Artemis would learn the value of Percy's more impulsive and passionate approach. Eventually, they could become good friends and allies, using their combined strengths to face any challenges that come their way in the fanfiction world.
At first, they might be cautious around each other. Aquaman, being the king of Atlantis, would be wary of this strange demigod from the surface world. Percy, on the other hand, would be in awe of Aquaman's power and the strange underwater world. But as they face challenges together, like fighting off some menacing sea creatures or stopping a villain who wants to control the ocean, they would start to respect and rely on each other. Percy might crack some jokes to lighten the mood, which Aquaman might find strange at first but then start to appreciate as a sign of Percy's courage.
The demigods from Percy Jackson's world would interact with the Diablo characters in different ways depending on their personalities. Annabeth, being the strategic thinker, would try to analyze the Diablo characters' weaknesses and form plans. She might try to communicate with any intelligent Diablo creatures to find out more about their world. Grover, with his connection to nature, might be really disturbed by the corrupted and dark nature of the Diablo world. He could try to find any remnants of good or nature in that world to help in the fight against the dark forces. And when it comes to the Diablo characters, some of the more cunning ones might try to manipulate the demigods for their own ends.
Percy would likely be very curious about the characters in the Overlord world. He might approach them with his usual friendly and adventurous attitude. The Overlord characters, depending on their nature, could either be hostile or intrigued. For example, the more powerful and evil - inclined characters might see Percy as a threat and try to eliminate him. But the more neutral or good - hearted ones could be interested in learning about his powers and his world.
Perhaps a story where the technology - savvy Artemis Fowl finds a way to hack into the ancient magic systems of the Percy Jackson universe. This could lead to all sorts of chaos as he accidentally unleashes some long - dormant threats while also trying to use the magic for his own ends. And Percy has to step in to stop the mayhem while also learning about the newfangled technology Artemis brings with him.
When Naruto enters the Percy Jackson world, he'd be like a fish out of water. But his friendly nature would soon make him start conversations with the demigods. Percy would be one of the first to approach Naruto as well. They'd start comparing their powers. Naruto would be amazed at how Percy can breathe underwater and summon sea creatures. Percy would be equally impressed with Naruto's Rasengan. As they get to know each other better, they'd start to rely on each other in battles. Naruto would use his speed and clones to distract enemies while Percy strikes with his sword and water powers. They'd also have friendly competitions, like who can complete a certain task faster, which would strengthen their friendship.
Percy would probably be really curious about Luffy's devil fruit powers. He might try to figure out if there's any connection to the magic he knows. Luffy, on the other hand, would be excited to have Percy on board and would want to see his water powers in action.
Naruto would be very friendly and eager to make friends, so he'd probably start by introducing himself to Percy and his friends in a very enthusiastic way. Percy might be a bit cautious at first, but as he sees Naruto's powers, he'd be intrigued. They'd start sharing stories about their respective worlds, like Naruto talking about his village and Percy about Camp Half - Blood.
Naruto's ability to transform, like his Nine - Tails form, could provide a physical advantage in combat. Percy could use his water powers to cool down Naruto if the transformation makes him overheat or to create a protective shield around him. The Son of Artemis might be able to use his tracking skills, which are enhanced by his divine heritage, to find enemies that Naruto and Percy might not be able to sense. His arrows could also be used to disrupt the chakra flow of enemies, while Percy's water attacks could short - circuit any electrical - based ninjutsu, and Naruto's ninjutsu could provide distractions for Percy and the Son of Artemis to attack.
Percy would probably be really curious about the wizarding world. He might ask Harry a million questions about how magic works. Harry, on the other hand, would be intrigued by Percy's ability to control water and his connection to the gods. Hermione would likely be very interested in learning about Greek mythology from Percy and his friends, and she might try to find books in the Hogwarts library about it. Ron might be a bit more hesitant at first, but once he sees Percy's sword - fighting skills, he'd be impressed.
The characters would likely start off with suspicion. For example, the Gladers from Maze Runner are used to a world of order within the Glade and strict rules. When they meet Percy and his friends who are more free - spirited and used to a world of magic, they might be wary. Percy might be curious about the technology - like things in the Glade, while Thomas could be shocked by Percy's ability to control water. But over time, they'd learn to trust each other as they realize they need each other's skills to face the common threats.