The fanfiction might explore Percy's relationships in a new light. For example, his relationship with Annabeth could be strained as he now has loyalties to Gaea. His friendships with other demigods might also change drastically. Maybe he'd be seen as a threat and have to fight against his former allies. Overall, it would be a complete upheaval of the original Percy Jackson story dynamics.
The plot might involve Percy gathering ancient artifacts or allies. He could go on a quest to find a weapon that can harm Gaea on a fundamental level. Along the way, he overcomes many challenges and personal demons. When he finally faces Gaea, he combines his strength, the power of his friends, and the magic of the artifacts to completely destroy her, bringing peace to the world of the gods and demigods.
One possible plot could be Percy having to overcome some sort of magical or divine interference. Maybe he has to prove his worth to Gaea in a series of trials. Another aspect could be how the other demigods react to this union. Some might be in shock, while others might try to stop it for the greater good.
In a 'Percy Jackson Husband of Gaea' fanfiction plot, perhaps there's a prophecy that foretells of Percy being united with Gaea. Percy initially resists, but as events unfold, he realizes that there's more to Gaea than just the evil entity he thought she was. They could start to work together to bring about a new order in the world of the gods and demigods. Along the way, they face opposition from other gods who see their union as a threat. Percy has to balance his loyalty to his friends and his new - found relationship with Gaea, all while trying to understand his role in this strange new world order.
In this fanfiction, there could be a prophecy about a lemon that will either save or doom the world in the face of Gaea's threat. Percy Jackson is tasked with finding this lemon. Along the way, he meets various characters who either help or hinder his quest. When he finally finds the lemon, he has to make a difficult choice. If he gives the lemon to Gaea, she might spare some of his friends but would gain enough power to cause great destruction. If he destroys the lemon, he risks angering Gaea and starting a full - scale war. So, he has to find a third option that no one has thought of before.
One possibility is that Naruto's connection with the summons would make him more in tune with nature. For example, if he was raised by toads, he might learn their unique jutsu faster and have a different approach to combat. He could also have a different view on friendship and loyalty as summons often have a strong bond with their summoners.
Well, one possibility is that Rin would instill in Naruto her own values from the Hidden Leaf. Maybe she'd focus on teaching him about teamwork early on. Since she was a medic - nin, she could also start training Naruto in some basic medical ninjutsu, which would be a unique addition to his skills.
In a 'Naruto Raised by Kushina' fanfiction, the relationship between Naruto and the other villagers could be very different. Kushina would likely be very protective of Naruto, and this might change how the villagers view him. They might see him more as an extension of Kushina, who was respected in the village. Also, Naruto's growth as a ninja could be more focused on his Uzumaki abilities, like strong chakra control and unique jutsu that Kushina could teach him, rather than just his Jinchuriki status.
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.
One possible plot could be Percy discovering his true parentage as Gaea's eldest son and struggling with the implications. He might have to face the wrath of the other demigods who see Gaea as an enemy. For example, he could try to convince his friends like Annabeth that he is still on their side despite his newfound origin.
The plot could involve Percy's journey to discover the true meaning of being the son of Gaea and Pontus. He could be on a quest to find out more about his parents' realms and how they interact with the world of the demigods. Along the way, he may encounter mythical creatures that are related to Gaea and Pontus, and he has to either fight them or make peace with them. There could also be a sub - plot about Percy's relationships with his friends at Camp Half - Blood, as they struggle to accept this new side of him.