Another idea is Percy getting involved in a conflict between Oceanus and other powerful sea deities. This could put him in a difficult position where he has to choose sides or find a way to make peace. He may have to use his wits and newfound powers to navigate this complex situation.
One plot could be Percy exploring his unique powers as the son of Oceanus. He might discover abilities that are different from the regular demigods. For example, he could have a special connection to the deeper parts of the ocean that no one else has.
Percy as the son of Oceanus might be more aloof. Since Oceanus is a primordial god, Percy could inherit a sense of distance from the more common demigod affairs. He might be more focused on the grander scale of the ocean's well - being rather than the day - to - day problems of the demigod camp.
There could be a power - hungry sea witch who wants to use Percy's connection to Oceanus for her own gain. If Percy refuses, she becomes an antagonist. Additionally, some of the more traditionalist sea tribes might view Percy as an outsider and try to drive him out, acting as antagonists in the story.
A possible plot could involve Percy being sent on a quest by Oceanus to retrieve a powerful artifact lost in the ocean. Along the way, he meets new sea creatures and forms alliances. He also has to deal with the fact that some sea beings don't trust him because he's an adopted son, not a true - born of Oceanus. This creates internal and external conflicts for him as he tries to prove himself worthy.
There could also be a plot where the sirens are not the typical villains. In this fanfiction, they could be victims of a greater evil in the ocean. Percy has to team up with them to fight this common foe. It would be a great twist on the traditional view of sirens in the Percy Jackson universe.
One possible plot could be Percy getting a special power from Apollo's blessing. For example, he might gain the ability to heal faster, which would be really useful in his battles. He could use this new power to save his friends in a dangerous situation, like when they are facing a powerful monster and his friends are severely injured.
One idea could be Percy exploring his new powers related to Oceanus. Since Oceanus is a primordial god of the ocean, Percy might have an even deeper connection to the sea and be able to control more extreme oceanic phenomena like underwater volcanoes. Another plot could involve Percy facing conflict within the demigod community as his new heritage changes the power dynamics. Some might fear his increased power, while others might want to use him for their own gains.
In this fanfiction, it's likely that Harry's life takes a very different turn. As the son of Oceanus, he could have an entirely different set of magical abilities. He might be able to communicate with sea creatures, control the tides, or even have a special bond with the underwater world. His story could explore how he balances his newfound powers and identity with his existing life as a wizard in the wizarding world. There could be a lot of self - discovery as he tries to understand what it means to be the son of such a powerful being.
One interesting storyline could be the struggle of a Son of Artemis in a world dominated by male demigods. He might face discrimination or be underestimated at first. For example, in a quest, others might doubt his abilities because he's associated with Artemis, a goddess who has a mainly female following. Another could be his relationship with the wild animals that Artemis is associated with. He might have an extraordinary bond with them, which helps him in various challenges, like using a pack of wolves to track down a powerful enemy.
One possible plot could be Percy being stuck in a time loop where he has to keep saving Artimis from a recurring threat. Maybe a powerful Titan is constantly finding new ways to capture her, and Percy has to figure out the pattern within the loop to stop it for good. Another idea is that the time loop is a result of a curse placed on Artimis, and Percy has to team up with the hunters of Artimis to break the curse before the loop consumes them all.
His relationship with Annabeth would be different. She might be a bit more cautious at first, as Percy's new heritage from Oceanus could bring unforeseen challenges. But they would also have a new level of respect for Percy's increased power. With his other friends like Grover, they might look up to him more, seeing him as having an even greater destiny. However, some characters might be jealous or suspicious of Percy, like some of the children of Poseidon who might feel overshadowed.