What are some interesting plot ideas for a 'Percy son of Fenrir' fanfiction?

One idea could be Percy having to struggle with the dark reputation that comes with being Lucifer's son while trying to prove he's not all bad. Maybe he forms an unlikely alliance with some angels who initially distrust him but later see his good side.

One idea could be Percy having to prove himself in the Underworld. Since he's the son of Tartarus, he might face unique challenges from the other denizens who fear or distrust him. Maybe he has to compete in some sort of underworldly tournament to gain respect.

A really cool plot could be Percy getting caught in an alternate dimension where Ares is the main god in charge. He has to find a way to survive in this new world, where the rules are different and he's seen as an outcast. Percy would need to use his wits and skills to navigate this strange place and find a way back home.

A great plot idea would be Percy getting trapped in one of Daedalus' old mazes. He has to use his wits and the skills he's learned as a demigod to find his way out. Along the way, he encounters old traps and puzzles set by Daedalus himself. This could also be a chance for Percy to meet the spirit of Daedalus within the maze and learn some valuable lessons from him. Or perhaps Percy has to team up with other descendants of Daedalus to solve a mystery that has been plaguing their family for generations.

A possible plot could be a competition among the demigods where Percy, as a 'Son of Ares' in this fanfiction, has to prove himself against other powerful demigods. The competition could include tasks like combat, strategy, and survival challenges. Along the way, Percy could learn more about the Ares - like qualities within himself and also form new alliances or rivalries.

Another plot could involve Percy's relationship with the primordial beings. Maybe he has to seek advice from them to save the world from a greater threat. He could learn about ancient secrets and prophecies that only the primordials know, which would add an interesting twist to the story.

One idea could be Percy having to navigate the Underworld politics due to his relation to Hades. He might face challenges from other underworld creatures who don't trust him. Another could be Percy using his newfound powers as the son of Hades to fight against an ancient evil that threatens both the mortal and underworld realms. Or perhaps he has to deal with the stigma of being Hades' son in the demigod community and prove himself worthy.

Another plot could involve Percy's relationship with his father, Hades. Maybe Hades has some grand plan for Percy that he doesn't fully understand at first. Hades could be trying to use Percy to gain more power in the world of the gods, but Percy resists and has to fight against his father's wishes while also dealing with the internal conflict of not wanting to completely turn his back on his family.

One idea could be Percy going on a quest to find a lost artifact of Athena that has the power to restore balance in the world of the gods. Another could be Percy having to face off against a powerful enemy who is specifically targeting him because of his relation to Athena. Maybe he discovers some long - lost siblings also sired by Athena during his adventures.

A possible plot for 'Percy is a Son of Chaos' fanfiction could be Percy being sent on a mission by Chaos itself. This mission could be to restore balance in a part of the universe that has been thrown into chaos (ironically) by some dark force. Along the way, he teams up with some unlikely allies, some of whom are also children of primordial entities. They all have different motives and powers, and Percy has to learn to work with them while also coming to terms with his own identity as a son of Chaos.