A possible plot is that Fem Percy discovers a secret about her past that links her to the Olympians in a way she never expected. She then has to deal with the politics and power plays among the gods. She could team up with Athena to outwit some of the more devious Olympians who see her as a threat because of her new - found connection. This would lead to a lot of adventure and character development.
One idea could be that Fem Percy, with her unique skills, has to prove herself to the Olympians. Maybe she goes on a quest to retrieve a powerful artifact that was stolen from Olympus and in the process, she has to face off against various mythological creatures. Along the way, she forms an unexpected bond with one of the Olympians, perhaps Hermes, who helps her navigate the tricky world of the gods.
Well, it should start with mutual respect. Since Percy already has a reputation in the Percy Jackson universe, the Olympians would initially be curious. They might test her, like Poseidon sending small challenges her way. Fem Percy would have to prove herself worthy of their attention. As time goes on, she could start to form individual relationships. For example, if she shows an interest in art, she might bond with Hephaestus over creating magical weapons or with Aphrodite over the beauty in art. These small interactions can gradually build into deeper relationships.
One idea could be Percy having to face a new, unknown threat that even the Olympians are afraid of. Maybe it's a primordial force that was locked away long ago and is now breaking free. Another plot could be Percy getting stranded in a different realm, like the Underworld, and having to find his way back while dealing with the local challenges and creatures there. Or perhaps Percy has to team up with some of his old enemies to fight a common, greater foe that endangers both the demigods and the Olympians.
One idea could be exploring Percy's life if he had a different godly parent. For example, if he was a son of Hades, how would his powers and his relationship with the other demigods change? Another idea is to write about a time - travel adventure for Percy and his friends, where they go back to the era of the first Olympians.
One idea could be Percy having to face a new and powerful monster that is a combination of different mythological creatures. For example, a chimera with the head of a hydra. This would create a unique and challenging battle for him.
One idea could be that the fem oc is a new camper at Camp Half - Blood with a unique power related to nature. She and Percy have to go on a quest together to save a forest that is being poisoned by a mysterious force. Along the way, they discover that their powers work better together and start to develop feelings for each other.
One plot idea could be that Fem Percy, with her unique skills and courage, is wrongly accused by Zeus of a crime she didn't commit. She then has to prove her innocence while facing various challenges set by Zeus. Another idea is that Zeus, intrigued by Fem Percy's power, tries to recruit her for a special mission, but Fem Percy has to decide if she can trust Zeus. A third plot could be that there is a prophecy involving both of them, and they must work together despite their differences to prevent a great disaster.
One plot idea could be Fem Percy having to prove herself to the gods in a series of trials. Since she's female in this version, she might face different expectations and prejudices from the male - dominated pantheon. Another idea is a love story between Fem Percy and a god, like Apollo perhaps, and how their relationship is complicated by the power dynamics between mortals and immortals.
One plot idea could be that Fem Percy, with her demigod powers, ends up in Gotham. Batman initially suspects her of being a new threat. But as they interact, they realize they can help each other. Fem Percy could use her water - controlling abilities to help Batman during a flood situation in Gotham caused by a villain. Another idea is that Fem Percy is on a quest that somehow intersects with Batman's fight against a criminal organization that has ties to ancient magic, which Fem Percy is more familiar with.
One idea could be a crossover where Harry Potter characters attend the Camp Half - Blood in the Olympians world. They could learn about different magic systems and form new alliances. For example, Hermione might be intrigued by the knowledge of the Oracles in the Olympian world and try to study their prophecies.
One plot idea could be that Fem Naruto, having a unique bond with Fem Kyubi, goes on a journey to discover more about the origin of the Kyubi's power. They face various challenges together and in the process, Fem Naruto learns to control and utilize the Kyubi's power in new ways.