One idea is that Percy's contacts are magical. They allow him to see hidden things, like the true forms of monsters even when they are disguised. This could lead to all sorts of adventures as he has to figure out how to use this new ability without getting caught by the wrong people.
In a fanfiction, Percy's contacts could be a symbol of his growing up. He's moving away from his more childish self and trying to look more mature. But the contacts also bring problems. For example, they make his eyes dry during long battles or quests. His friends are constantly teasing him about his 'new look' while also being concerned about the practical issues. This could explore the theme of change and acceptance in a fun and engaging way.
Perhaps Percy gets contacts as a gift from a mysterious character. These contacts have a mind of their own and sometimes make him see things that aren't really there. He has to figure out how to control them or get rid of them before they drive him crazy. It could be a really wild and wacky plot full of unexpected twists.
One idea could be that a new student arrives at Hogwarts with color - changing contacts that are actually enchanted. These contacts allow the wearer to see hidden magical symbols around the school. For example, they might reveal secret passages or the location of long - lost magical artifacts. Another plot could involve a villain using the color - changing contacts to disguise their true identity. They could change their eye color to blend in with different groups of students or teachers to carry out their evil plans.
One idea could be an OC who is a talented fashion designer but has a completely different aesthetic from Miranda. Their clashes and eventual understanding could be a great plot. For example, the OC might introduce sustainable and ethical fashion concepts to the high - end fashion world Miranda dominates.
Another plot could involve the reaction of the other Avengers. They might be initially confused or even a bit worried about Tony's new look and abilities. But as he starts using them to their advantage, they come to accept and even rely on this new version of Tony Stark.
One idea could be that Percy is framed for stealing a powerful magical artifact. His friends initially doubt him, but as he tries to prove his innocence, he uncovers a conspiracy within the magical community. For example, a secret group wants to use the situation to gain more power and is setting him up as a scapegoat.
One idea could be Percy getting involved in the Kurukshetra war. He might use his water - controlling abilities to change the course of battles near rivers or lakes. For example, he could create huge tidal waves to disrupt enemy formations.
One idea could be a time - travel plot where Percy goes back in time and meets a younger, different Medusa before she was turned into a monster. Another could be a story where Medusa somehow gets a chance at redemption and Percy has to decide whether to trust her or not. Maybe a plot where they have to team up to defeat a greater evil that threatens both of them.
One plot idea could be Percy having to go on a quest specifically guided by Poseidon's hidden messages in the sea currents. He has to decipher these messages to find a lost artifact that can save the underwater kingdom from a new, mysterious threat.
One idea could be Percy using his devilish powers to protect his friends in a unique way. Maybe he has the power to manipulate shadows and uses this to create illusions to mislead enemies.
One idea could be Percy exploring his newfound godling powers and how they differ from his demigod abilities. He might accidentally cause some chaos in the mortal world while trying to master them.
One idea could be Percy helping a Naiad protect her water source from pollution. He uses his demigod powers to fight off the forces causing the pollution.