One interesting plot point could be Percy's relationships with the various gods. Since he's growing up on Olympus, he'd have unique interactions with them. Maybe he becomes a sort of protege to a particular god, learning their special powers or skills.
Well, Percy is obviously one of the main characters. Since it's about him growing up on Olympus. Annabeth might also be a major character as she has a close relationship with Percy. She could be visiting him on Olympus or they could be having some long - distance communication that affects the story.
One interesting plot point could be Bella's adaptation to the Cullen family's unique lifestyle. For example, getting used to their dietary habits and their super - fast speed. Another might be how she grows in her relationships with each of the Cullen family members over time, like her bond with Alice becoming stronger as they share more experiences.
Well, perhaps in this fanfiction, Snape helps Harry to understand his mother better. Since Snape had a deep connection with Lily, he could share stories about her with Harry. This might lead to Harry having a different perspective on Snape as well. Also, they could team up to protect some of the more vulnerable students from the influence of the Death Eaters' children at school.
One possible plotline could be Percy's struggle to adapt to the Hunt's way of life. He might have to learn their combat styles and rules. Another could be his relationships with the members of the Hunt, forming deep friendships or facing rivalries.
Well, it could be about Percy learning all kinds of sea - related powers from Poseidon. Maybe Poseidon teaches him how to control the tides or communicate with sea creatures. For example, Percy might start off as a young boy who is a bit clumsy with his powers but as he grows up with Poseidon's guidance, he becomes really proficient.
One idea could be Percy having to face a new, unknown monster that is immune to water. He'd have to rely on his other skills and the help of his friends in a completely different way.
Well, perhaps it could involve Percy learning about her powers with Poseidon's guidance. She might face challenges specific to being female in a male - dominated demigod world while having Poseidon as a father figure to support her.
Well, one possibility is that Percy has to learn to fend for himself in a harsh world. Maybe he discovers unique powers within himself as he faces various challenges alone. For example, he could learn to hunt and build shelters all by himself, much like a survival story.
Well, for this type of fanfiction, the plot might start with Percy being separated from his usual allies very early on. He'd be forced to navigate the mortal world by himself. Since he's growing up alone, he may not have the same understanding of his Greek heritage as he does in the original series. This could lead to him making different choices when it comes to using his powers. For example, instead of using them to protect Camp Half - Blood, he might use them to simply survive in a world that seems to be constantly against him.
One idea could be Ash becoming a renowned Pokémon master and having to deal with the new responsibilities that come with it, like mentoring new trainers. Another could be him facing a new and powerful villain who targets him specifically because of his fame.