Well, one key element could be the unique relationship between Percy Jackson and the realm of Hades. Since he's the son of Hades in this fanfiction, it might explore how he deals with the dark and mysterious powers associated with his father. Also, in terms of 'Perlia', it could be about a relationship or adventure that involves Percy and a character named Lia. Maybe their story is set against the backdrop of the mythological world, with battles against various monsters and challenges that test their bond.
It changes the dynamic a great deal. Percy's new identity as the son of Hades makes him darker and more brooding perhaps. This could make the relationship with Lia in 'Perlia' more complex. He might be more cautious and secretive, which could lead to misunderstandings in their relationship.
It could be the Titans or some new creatures that are jealous of Percy's connection to Chaos. They might see Percy as a threat and try to stop him and Perlia from achieving their goals.
Well, the plot could involve Percy's newfound status as the son of Chaos bringing all kinds of chaos (pun intended) to his relationship with Perlia. Maybe he has new powers that are hard to control and Perlia has to help him. It could also be about them facing new enemies together that are drawn to Percy's connection to Chaos.
One idea could be Percy having to mediate between Zeus and Hades during a major feud. Since he's the son of both in this fanfiction, he has a unique connection to them. He could use his powers and his knowledge of both of their domains to try and broker peace.
It depends on the specific Perlia fanfiction. Some might focus on Percy's immortality deeply, showing how it affects his adventures in new and different ways. For example, they could write about how he feels when he watches his mortal friends age while he remains the same. Others may just mention it in passing as part of the established character trait.
One common theme is the struggle with identity. Since Percy is usually the son of Poseidon in the original series, making him the Son of Hades in fanfiction often leads to him dealing with a new sense of self. Another theme is power and its consequences. Hades has a lot of dark and powerful abilities, so fanfictions might explore how Percy copes with having access to such powers.
Annabeth Chase might also be an ally. Her intelligence and strategic thinking could be valuable assets for the son of Hades. She could help him plan his moves, especially when dealing with the complex politics among the demigods and gods.
In Percy Jackson Perlia fanfiction, a common theme is the discovery of new powers. The characters might discover hidden abilities that were not explored in the original books. Another popular theme is the crossover with other fictional universes. It's interesting to see how the Percy Jackson characters interact with characters from other well - known series. And the theme of family is also important. Fanfictions might explore the family backgrounds of characters more deeply or create new family - related storylines.
Obviously, Percy Jackson himself is a main character. He's the one with the new identity as the son of Hades. Nico di Angelo could also be a major character as he has a strong connection to Hades already. And Annabeth Chase would likely be involved too, as she's Percy's close friend and often by his side in adventures. There could also be some new characters created specifically for the fanfiction, like a powerful Underworld spirit that becomes Percy's guide or an enemy within the Hades - influenced areas.