In a Percy Jackson born a werewolf fanfiction, the story could start with Percy being an outcast even among the werewolves because of his demigod heritage. He then discovers that there are certain prophecies related to his existence that could either save or destroy both the werewolf and demigod worlds. As he tries to figure out his place, he could form an unlikely alliance with some of his demigod enemies who realize that they need to work together to face a greater threat that is emerging because of Percy's unique situation. His werewolf form could also give him access to a different kind of magic or power that he has to learn to control, which could be a major part of the story's development.
Well, perhaps in this fanfiction, Percy is born a werewolf due to some dark magic that was cast on his family long ago. His journey could be about finding a way to break the curse while still being a part of the demigod world. He could meet other werewolves who either want to help him or are against him because of his demigod side. And he might have to face challenges like being hunted by hunters who don't distinguish between 'good' and 'bad' werewolves.
Another plot could be a love story between a character from Percy Jackson's world and a werewolf in the perlia group. This relationship would face many challenges, like the different natures of demigods and werewolves. They might have to overcome prejudice from both sides, and also deal with threats from external forces that don't approve of their union.
Another plot could be Percy being sent on a quest by Poseidon to retrieve a powerful and ancient artifact that was stolen from the sea god's domain. Along the way, he meets other demigods who have their own motives regarding the artifact, and he has to figure out who to trust.
Percy's relationships would be in upheaval if he were born a werewolf. His friendship with his demigod comrades at Camp Half - Blood would face many challenges. Some might be accepting, but others would fear his new - found abilities and the potential danger he poses. His relationship with his father, Poseidon, would also be altered. Poseidon might see Percy as more of an abomination or a unique tool depending on his own complex nature. Percy's love life, like with Annabeth, would be full of complications. Annabeth would have to decide if she can love a werewolf - demigod hybrid, and Percy would struggle with his own self - image in relation to her. His relationships with other mythological creatures, such as centaurs and nymphs, would also change as they would view him through the lens of his werewolf nature rather than just his demigod status.
Maybe Percy has to deal with other gods being jealous or threatened by his sudden ascension to godhood. He could face challenges from them to prove he's worthy of being a god. This would involve epic battles and political intrigue in the world of the gods.
One idea could be that Percy struggles to control his new vampire instincts while also trying to hide his identity from his friends. Another could be that he discovers a hidden vampire society within his town and has to navigate their politics.
One plot idea could be Percy having to team up with Hera to rescue a group of demigods who have been captured by an ancient monster. Hera, despite her usual aloofness, realizes she needs Percy's unique skills.
A great plot could involve Percy going on a quest not for the typical reasons like saving the world or a camp, but to find a way to restore the memories of a friend who has lost them due to a powerful spell. Along the way, he discovers secrets about his own past that were hidden from him. He might also encounter new demigods with unique powers who either help or hinder his journey.
One idea could be that Padme somehow gets transported to the Percy Jackson universe. She could use her diplomatic skills to help resolve a conflict between the demigods and a new, powerful enemy. Maybe she teams up with Percy and they combine their unique abilities to defeat the foe.
One idea could be Percy getting a magical haircut that gives him new powers. Maybe the hair is cut by a special sword and as each strand is cut, a new ability like controlling water in a more unique way or being able to communicate with sea creatures better is bestowed upon him.
Another plot idea could be that Percy discovers a hidden underwater civilization that is not related to Poseidon. This civilization has its own set of rules and powers. Percy has to navigate through their complex society and politics while also trying to convince them to help the demigods in a coming war against an ancient evil that is rising again. The underwater civilization could have unique magic and technology that the demigods have never seen before.