Perhaps there could be a plot where Percy forms unexpected alliances within the Hunt. He might find kindred spirits among the other members who also have misgivings about the way things are. This could lead to a sub - plot of trying to change the system from within.
One idea could be Percy having to prove himself to the Hunt. For example, he might be tasked with a difficult quest that only his unique skills can solve. Maybe he has to retrieve a lost magical item from a dangerous monster's lair. Another plot could involve Percy forming unexpected alliances within the Hunt. He could bond with some of the hunters over their shared experiences of being different or outcast in some way.
Well, obviously Percy Jackson is one of the main characters. Since it's about him being a slave of the Hunt, he's at the center of the story. Then there would likely be the Hunt's leader. This character would play a crucial role in dictating Percy's actions and his life within the Hunt.
A third plotline might be Percy's newfound powers or abilities due to being raised by the Hunt. He could develop enhanced senses, like better vision at night or a keener sense of smell. This would not only help him in hunting but also in facing off against enemies. He could use these powers to protect the Hunt from threats that they haven't encountered before.
Well, perhaps there's a plot where Percy has to find a lost lemon that has some sort of ancient prophecy tied to it within the hunt. The lemon could be the key to saving a particular realm or group of people. And during the hunt for this lemon, he meets all kinds of strange and wonderful characters that either help or hinder his progress.
Well, perhaps there's a plotline where Percy discovers new powers or abilities as a result of being adopted by the Hunt. It could also involve Percy using his existing skills in ways he never thought of before, to help the Hunt in their various missions. And he may also face challenges from outside forces who don't like his new affiliation.
Perhaps Annabeth is wrongly accused of a crime and is made a slave as punishment. Her friends, including Percy, try to prove her innocence while also dealing with the internal politics of the demigod society that allows such a cruel situation to exist. This could involve a lot of character development for all involved as they question the fairness of their world's laws and norms.
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, in some fanfictions, there could be a plot where Percy is challenged by an unknown entity to prove his worth as the champion of the hunt. This could involve him having to track down and defeat a series of increasingly difficult foes. Or perhaps a plot where Percy discovers a new aspect of his hunting abilities while exploring an ancient and dangerous forest. He might have to use these newfound powers to rescue his friends who are lost in that forest. It could also be that Percy is sent on a hunt to retrieve a powerful artifact that has been stolen by a rogue demigod, and the journey is filled with various obstacles and battles.
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.