One possible plotline could be Percy struggling to fit in at high school while also hiding his demigod powers. Maybe he accidentally uses his powers in front of his classmates during a sports event and has to come up with a creative excuse.
A third plotline could be Percy having to deal with a bully at school who turns out to be influenced by a minor god or a magical creature. Percy has to figure out how to stop the bully without revealing his true identity. He might use his wits and some of his less obvious demigod skills, like his ability to sense danger, to outsmart the bully and the force behind him.
A third plotline could be the characters forming new relationships in high school. They could meet other students who are also secretly part of the superhero world or just normal friends. These new relationships can change the dynamics within the young justice group and also lead to personal growth for the characters.
In fanfiction, if Percy Jackson goes to highschool, he might face challenges like hiding his demigod powers from his classmates. He could also encounter new mythical creatures that are drawn to the school environment.
Perhaps Percy gets involved in a special mission at Camp Jupiter. Like he has to protect a powerful ancient artifact within the camp from an outside threat. This could involve a lot of action and strategy as he navigates the Roman camp's politics and military structure.
A new teacher who is actually a disguised satyr could be introduced. The satyr could be there to keep an eye on Percy and make sure he doesn't accidentally expose the world of demigods. He could be a bit of a comical character, always getting into trouble with the school rules while trying to protect Percy.
One possible plotline could be Percy having a series of traumatic experiences that gradually drive him insane. Maybe he loses his friends one by one in tragic ways, and the cumulative grief and guilt push him over the edge. Another could be that he is exposed to some dark magic that slowly corrupts his mind, making him lose his grip on reality.
One possible plotline could be Percy getting involved in the Trojan War. He might use his modern skills and powers to change the course of the war. For example, he could use his water - controlling abilities to disrupt the Greek ships or help them in unexpected ways. Another plotline could be Percy befriending the great Greek heroes like Achilles or Hercules. He could learn from them and they from him, creating a cross - era friendship story. Or perhaps Percy stumbles upon a lost temple in ancient Greece that holds a great power, and he has to face various ancient monsters to protect it or claim it for himself.
One possible plotline could be Percy teaching his demigod child about their powers and the world of the gods. For example, he might take them to Camp Half - Blood and introduce them to the cabins, the training arenas, and the other demigods. Another plot could involve Percy protecting his family from a new threat, like a powerful monster that has a vendetta against him. Or perhaps his child discovers a new and unknown power, and Percy has to help them understand and control it.
In some Naruto harem highschool fanfiction, a plotline could involve a school competition where Naruto has to team up with different girls. This teamwork leads to them getting to know each other better. For example, he might be paired with a girl who is really good at academics but lacks physical skills, and Naruto's ninja - like abilities help them in the competition. This shared experience makes the girls develop feelings for him.
A plotline could be that the braces have some sort of magical property. Since Percy is a demigod, perhaps the braces were made by Hephaestus as a way to control water in a new way. Percy has to learn to use this new power while also dealing with the normal annoyances of having braces, like getting food stuck in them. This could lead to some exciting adventures where Percy discovers new abilities related to his braces.
Well, perhaps a good plotline would be Percy's twin sister getting kidnapped by a powerful enemy. Percy then has to embark on a dangerous quest to rescue her. Along the way, he discovers more about his sister's hidden strengths and her importance in a prophecy. Or, they could both be sent on separate quests by the gods, but find out that their quests are actually intertwined and they need to work together to succeed in the end.