One possibility is that Percy's new status as the adopted son of Ouranos gives him unique powers. He might be able to control primordial elements like the very essence of the sky and space. For example, he could create storms on a much larger scale than before, drawing power from the origin of the heavens. Another aspect could be his relationship with the other gods. They might view him with a new level of respect or fear, which would change the power dynamics in the demigod world. And Percy would also have to deal with the expectations and responsibilities that come with being related to such a powerful primordial being.
Well, when it comes to Percy's relationships in this fanfiction scenario, it's really a big shift. His bond with his mother would be affected as she tries to understand this new part of her son's identity. His relationship with Grover would have an interesting turn. Grover might see Percy as even more of a protector figure now, but also be concerned about the changes. And Percy's relationship with the minor gods would change too. They might approach him, hoping to gain some favor or protection through his link to Ouranos. Overall, Percy's relationships would be in a state of flux, with everyone trying to figure out how to interact with him in this new role.
One possible plot could be Percy's discovery of his true parentage. He might struggle with the implications of being the son of two powerful primordial deities. For example, he could face a conflict between the forces associated with Ouranos and Gaea. This could lead to him having to make difficult choices about which side to support, if any. And he may also have to deal with the reactions of his friends and the other demigods who might view him differently now.
Maybe there's a plot where Percy has to team up with other demigods who also have primordial roots. Together, they have to face a great evil that is threatening to destroy the balance between the primordial and Olympian worlds. They would have to use their combined powers and knowledge to save both worlds.
It could involve Percy having new and powerful abilities. Since Ouranos is a primordial god, Percy might have control over fundamental elements like the sky or the very essence of creation. For example, he could be able to manipulate the air in ways he couldn't before, like creating powerful storms or even pockets of different atmospheres.
Percy, son of Ouranos, stood on the cliff overlooking the vast expanse of the ocean. His eyes, a deep shade of blue like the sea itself, held a glint of determination. He knew his lineage was special, being the son of the primordial god Ouranos. He felt a connection to the skies above and the waters below. With a deep breath, he raised his hands, and the wind began to stir around him, as if answering his call. He was ready to face whatever challenges lay ahead, to prove himself worthy of his divine heritage.
He would likely be more in tune with the earth and the sky elements. His powers might not just be limited to water control as before. For instance, he could have the ability to manipulate the ground like Gaia's children and also have some control over the air or weather like related to Ouranos.
In this fanfiction, there might be a lot of focus on Percy's relationship with the other wolves in Lupa's pack. He could learn their ways of survival, their hierarchy, and how to be a part of their community. This would be a great way to explore his adaptability and growth.
One idea could be Percy having to deal with the conflicting powers within him from being the son of Gaia and Ouranos. Maybe he discovers a hidden realm that only he can access due to his unique parentage.
One possible plot could be Percy's internal struggle. Since Gaea is often seen as a villain in the Percy Jackson series, Percy would have to come to terms with his dark heritage. He might be shunned by his friends at first. But then, as he discovers that he has the power to control earth and sky elements from his parents, he could use it for good. For example, he could prevent natural disasters that Gaea might have caused in her malevolent state. And he would have to prove to everyone that he is not like his mother, but a hero in his own right.