The plot might involve Percy and Jason having to adapt to the new and chaotic rules of the Chaos realm. They could discover new powers within themselves as they are exposed to the wild and unpredictable energy there. They might also meet old enemies who have also found their way into this strange new world, leading to some epic battles and unexpected alliances.
As they join the Chaos fanfiction, Percy's sense of humor might change to something more dark and sarcastic as a coping mechanism in the chaotic environment. Jason could become more in tune with his emotions, as the Chaos realm forces him to face his innermost fears and desires. Their characters would likely become more complex and multi - faceted as they are pushed to their limits in this new and dangerous world.
In this fanfiction, it could be that Percy, Nico and Jason are chosen by Chaos for a special mission. Chaos might have seen something unique in them, like Percy's leadership skills, Nico's connection to the underworld and Jason's strategic mind. They join Chaos and are part of a team that has to go on a quest to find some lost artifacts that are crucial in maintaining the balance between order and chaos in the universe. Along the way, they face many challenges, make new friends and enemies, and grow as characters.
One of the common themes in fanfictions involving Percy, Nico, Jason and Chaos could be their epic adventures. For example, they might team up to face a new and powerful threat that emerges from the chaos itself. Maybe they have to journey through different realms, using their unique powers and personalities to overcome obstacles.
A cool fanfiction idea could be that Percy, Nico, Jason are chosen by Chaos to be its champions in a battle against an ancient evil that is trying to bring total destruction. They are given special powers by Chaos and have to learn to use them quickly.
Well, in many 'Percy join Chaos' fanfictions, a key plot point is Percy's relationships. How does he interact with the beings in Chaos? Does he make new friends or enemies? Also, his journey to understand the purpose Chaos has for him. Is he there to save it, change it, or is he just a pawn in a bigger game? These questions often drive the plot forward.
I'm not sure about a specific 'Percy join Chaos' fanfiction off the top of my head. However, when looking for it, consider checking fan communities. They often have discussions and recommendations about such unique crossovers. Some might even share links to their favorite stories.
It could be the agents of Order who see Percy and Thalia joining Chaos as a threat to the balance they strive to maintain. They might send their best warriors to stop Percy and Thalia from carrying out Chaos' plans.
One possible plot could be that Percy and Thalia are tired of the constant battles and politics in their current world. Chaos offers them a new beginning. They join Chaos' forces and are trained in unique ways. Percy might use his water - controlling abilities in new and unexpected ways under Chaos' guidance. Thalia could also enhance her skills with lightning. Together, they go on missions to restore balance in different realms that are in chaos (in a non - traditional sense).