A unique plotline could be Percy being deaged and having to hide his identity from the new demigods at Camp Half - Blood. He has to pretend he's a new camper while secretly trying to find a way to reverse the deaging.
There are fanfictions where Percy is deaged and his powers are also affected. For example, he may have only a fraction of his normal strength. This forces him to rely more on his wits and the help of his friends. It's a great way to explore his character in a different light, as he's used to being so powerful.
Well, one unique plotline could be her relationship with her father, Hades. In some fanfics, she might be trying to earn his respect in a different way than a male Percy would. For example, she could use her femininity to her advantage in the Underworld politics.
In some fanfictions, Percy could become the God of Time himself. This would lead to a whole new set of powers and responsibilities. He might have to manage the flow of time, which could include stopping time - thieves or those who try to manipulate time for their own evil purposes. His friends would then have to adjust to this new, all - powerful Percy, and there could be conflicts arising from the change in his status.
Well, in fanfiction with a female Percy, her relationships often change. For instance, her relationship with Grover could be more sister - like rather than the bromance in the original. Her character arc might also be different. She could be more focused on proving herself in a male - dominated world of demigods. And her approach to quests might be more strategic as she might not rely on brute strength as much as the male Percy.
There's a fanfic where the gods are forced to live as mortals for a month. Zeus has to work at a fast - food joint and his attempts to order people around while wearing a silly uniform are hilarious. Poseidon struggles with using a computer at an office job, not understanding the concept of a 'mouse'.
One interesting plotline could be the Seven facing a new, more powerful enemy that is a combination of different mythological creatures. This would test their teamwork and individual powers in new ways.
One interesting plotline could be Aphrodite taking a special interest in Percy for a quest related to love and beauty. Maybe she tasks him with finding a lost artifact that has the power to enhance or destroy love. Another could be Percy falling under a love spell cast by Aphrodite, which causes chaos among his friends as he starts acting out of character. And a third one might be Aphrodite using Percy as a pawn in a love - related game among the gods, where his actions and decisions have far - reaching consequences for the relationships between the deities.
One interesting plotline could be the siblings going on a secret quest together without the knowledge of Chiron or the other campers. They might face a new and unknown monster that tests their combined skills.
In some fanfictions, a centurion discovers a long - lost prophecy that involves Percy. This could lead to a race against time as they try to figure out the meaning of the prophecy and prevent a great disaster. Maybe it involves a new Titan rising and they need Percy's unique connection to the sea gods to stop it.
Maybe in the fanfiction, Percy's player side shows up when he has to navigate the complex social hierarchies of the demigod world. He could be seen charming different groups of demigods, from the children of Athena with his quick - witted remarks to the children of Aphrodite with his newfound 'player' charisma. This could lead to all sorts of adventures and conflicts as he tries to maintain his relationships while also keeping up his player image.
Another plotline could be Percy trying to find a way to clear his name and escape the prison. Along the way, he might make some unexpected allies among the inmates or even some prison staff who are sympathetic to his cause. This could lead to an epic adventure within the prison walls as he tries to gather evidence and outwit his captors.