In this fanfiction, Percy might befriend a group of monsters who show him a different side of their existence. He could become a monster by accident, like being exposed to some strange magic. As a result, he has to hide his new identity from his human friends and navigate the complex politics among the monster clans.
Well, perhaps Percy could start off as a normal person who is suddenly intrigued by the world of monsters. Maybe he gets cursed and starts to transform into a monster himself bit by bit, and has to figure out how to reverse it while also dealing with his newfound monster - like instincts.
In this fanfiction, Percy could be an assassin who is on a quest to find a powerful artifact. This artifact was stolen by a rival group and is being used for evil purposes. He travels across different lands, using his assassin skills to gather information, fight off enemies, and finally retrieve the artifact to save the world.
Well, it could be that Percy wakes up one day as a girl and has to navigate the world with a new perspective. Maybe she now has to deal with different social expectations and relationships. For example, her friendships might change as her friends react to her new form.
Maybe Percy becomes a hunter to protect a certain forest that is in danger. He discovers that there are dark forces at work that the normal heroes haven't noticed. As a hunter, he uses his quick thinking and physical abilities to gather information. He then teams up with other hunters, and they gradually accept him as they see his determination and unique skills.
One possible plot could be Percy facing an ultimate battle that forces the Olympians to recognize his extraordinary powers. They then decide to make him a god as a reward and for the greater good of the pantheon. He might have to give up some of his mortal ties, like his relationship with Annabeth, which would create a great internal conflict for him.
Well, perhaps Percy has to go through a series of trials. He might need to prove his worthiness to the Olympians. Maybe he has to battle some mythical creatures that are threatening the Olympian realm. And in the end, he gains the recognition and powers of an Olympian.
Maybe Percy gets betrayed by his friends in the fanfiction. This could lead him to become dark as he loses trust in those he once cared about. He might then start using his powers in more aggressive and self - serving ways.
In this fanfiction, it could be that Percy is chosen for a special task by the existing Olympians. They see his potential not just as a hero but as someone who could join their ranks. So he gets trained in Olympian magic and lore, which is very different from what he's used to. He has to learn how to control new powers and also deal with the politics among the Olympians.
The plot could start with Percy being somehow influenced by Kronos, maybe through a dream or a cursed object. Then he slowly starts to act in ways that are out of character for him. He might begin to gather followers who are also attracted to the power that Kronos represents. Eventually, he could lead an uprising against the gods, believing that he can create a new world order under Kronos's ideology.
In a 'Percy becomes guardian of the hunt' fanfiction, the plot might involve Percy being chosen because of his unique connection to the water. The Hunt often operates in various terrains, and Percy's water powers could be a great asset. He might have to face challenges from within the Hunt first, as some members are skeptical of him. But through his courage and determination, he wins them over and takes on the role of guardian, protecting the Hunt from threats both external and internal.
Well, perhaps Percy discovers a hidden power within himself that is linked to time. He might start having visions of past and future events and realizes he has the potential to become the Titan of Time. Maybe he has to go on a quest to find an ancient artifact that will complete his transformation.