A possible plot could be that the Primordial Son of Chaos is slowly being awakened by the actions of the modern world. Percy senses this disturbance in the fabric of the cosmos. He then embarks on a journey to find out more about this entity. Along the way, he meets old foes and new friends. The story could involve a race against time as Percy tries to prevent the full awakening of the Primordial Son of Chaos if it's going to bring destruction, or he could be trying to ensure its proper awakening if it's meant to bring balance.
One possibility for a Percy Jackson fanfiction centered around the Primordial Son of Chaos could be a story where Percy discovers a hidden prophecy related to this powerful being. Maybe he has to team up with some unlikely allies, like a group of minor gods who are also interested in the balance that the Primordial Son of Chaos might disrupt or uphold. This could lead to a series of adventures across different realms, including Tartarus, where they search for clues about the true nature of the Primordial Son of Chaos.
Well, the plot could involve Percy's newfound status as the son of Chaos bringing all kinds of chaos (pun intended) to his relationship with Perlia. Maybe he has new powers that are hard to control and Perlia has to help him. It could also be about them facing new enemies together that are drawn to Percy's connection to Chaos.
Well, it could be that Percy is tricked into believing the son of chaos is a threat when he's actually not. Maybe some other characters manipulate Percy's perception with false evidence.
The plot could center around Percy's transformation into the 'Son of Chaos'. He might have to face challenges that test his loyalty to his old friends at Camp Half - Blood while also adapting to his new role. He may also encounter new characters who are either allies or enemies in this new phase of his life. It might also involve a power struggle within the chaotic realm where he has to prove himself worthy.
Well, perhaps the plot involves Percy being hunted by various forces. The Olympians see him as a threat because of his Chaos lineage, and the minions of Chaos might think he's too much of an Olympian. He then has to form an unlikely alliance with some demigods and minor gods who believe in his unique potential. Along the way, he uncovers secrets about the origin of the gods and the true nature of the relationship between Hera and Chaos.
One idea could be Percy discovering new powers related to his primordial heritage. For example, he might be able to control some ancient elements that no one has seen before. Another plot could involve Percy having to face off against other demigods who are jealous of his unique parentage. They might try to undermine him or even start a feud.
In some fanfictions, Percy Jackson is indeed portrayed as the true son of Chaos. Writers often take creative liberties to explore new storylines and character developments. This idea can lead to very interesting and unique plot twists, such as Percy having powers beyond what we see in the original series.
One possible plot could be that Percy, as a primordial, is seen as a threat by some of the gods. They might try to either control him or get rid of him. Percy then has to fight not only against the traditional enemies like monsters but also against the very gods he once thought were on his side. Meanwhile, he discovers ancient secrets about the primordial beings and his own origin that could change the fate of the entire world of demigods. He might also form new alliances with other primordial - like beings or creatures that are shunned by the normal order of things.
Often, one main plot point is Percy discovering his true parentage as a son of Chaos. This can lead to him feeling out of place in the normal demigod world. Another could be him having to hide this fact from his friends at first. And then there might be a plot where he has to learn to control the new powers that come with being a son of Chaos.
One idea could be Percy having to learn new powers that are unique to being the son of Chaos. For example, the ability to manipulate time in small ways or create portals to different realms that are only accessible to him. Another plot could involve Percy facing off against the traditional Greek gods who are threatened by his new status and powers.