One possible plot could be that Nico di Angelo somehow gets transported to the wizarding world. He might initially be seen as a strange outsider with his unique powers from the demigod world. Maybe he teams up with Harry Potter to face a new kind of dark magic that combines the elements of the demigod and wizarding threats. For example, a villain who has found a way to use both the magic of the Underworld and the dark arts.
Imagine Nico di Angelo in the Harry Potter universe. He would be an outsider, yet he'd quickly find his place. He could help in the search for Horcruxes. His knowledge of the afterlife might give him insights into Voldemort's soul - splitting magic. Nico would also have to deal with the pure - blood ideology in the wizarding world. As someone from a different mythological background, he would not understand the prejudice based on blood. This could lead to him challenging the status quo at Hogwarts and making new friends and enemies along the way.
One possible plot could be that Nico somehow gets transported to the Harry Potter world. He might use his powers from the Percy Jackson universe, like shadow - traveling, to his advantage in the new magical world. Maybe he helps Harry and his friends in their fight against Voldemort by providing unique strategies based on his own experiences with battles in his own world.
It could also be James. James is a natural leader and is always looking to include interesting people in his circle. When he sees Nico, he might sense that there's something special about him. He'd probably start by asking Nico about his abilities and before long, they'd be chatting like old friends. Plus, James has a big heart and would be accepting of Nico quite quickly.
Most likely, it would be Harry Potter and Nico di Angelo. Harry is the main character in his world and is always the one to step forward when something strange is going on. Nico, being the son of Hades, has a certain air of mystery around him. So, when he appears in the wizarding world, Harry would be the one to approach him out of curiosity and a sense of duty to protect Hogwarts from any potential threat.
It could be really interesting. Nico di Angelo, with his powers over the dead from the Percy Jackson universe, could interact with the magical world of Harry Potter. Maybe he'd be a transfer student at Hogwarts, causing a stir among the students and teachers alike with his unique abilities.
In a fanfiction where Nico di Angelo meets Dumbledore, there are numerous possibilities. Nico might be initially distrustful of Dumbledore, given his own experiences with authority figures. However, Dumbledore's calm and kind demeanor could gradually break down Nico's walls. Dumbledore could introduce Nico to the wonders of the wizarding world, such as spells and magical artifacts. Nico, in turn, could show Dumbledore some of his demigod abilities, like shadow - traveling. Their meeting could also lead to a cultural exchange of sorts, with Nico learning about Hogwarts and Dumbledore getting a peek into the life of a demigod.
In such a fanfiction, there could be an epic battle. Nico's powers from the Percy Jackson universe might clash with the Winchesters' hunting skills. Maybe they initially misunderstand each other, thinking the other is a threat. But then they could realize they are all fighting against some form of evil and team up. For example, Nico could use his ability to control the dead to help the Winchesters deal with a horde of zombies, while the Winchesters could teach Nico some of their combat tactics against demons.
Another storyline could involve Nico being on a quest in his own world, but it somehow intersects with Gotham. For instance, a powerful magical item has been stolen and ends up in Gotham. Nico follows it there and meets Batman. At first, they don't see eye to eye as they have different methods. But as they face challenges together, such as fighting off the villains who also want the item, they start to understand and trust each other more. This could lead to a long - term friendship or at least an alliance where they help each other out in future situations.
One possibility is that Nico, with his powers over the dead, could really freak out Batman at first. Batman is used to dealing with normal criminals and the occasional super - villain with scientific powers. Nico's dark and otherworldly abilities would be something completely new to him. Maybe Nico would mistake Batman for some sort of undead creature at first because of his all - black costume and brooding nature.