Well, it could affect the plot in various ways. The gods' possessiveness might mean that Percy has limited freedom. He may constantly be under the watchful eyes of the gods, which restricts his actions. Also, it could lead to power struggles among the gods themselves, with Percy caught in the middle. Maybe one god tries to protect Percy from the others' possessive actions, adding more twists to the story.
The possessiveness of the gods towards Percy is a very interesting aspect that can have a profound impact on the plot. First of all, it can lead to Percy being isolated from his friends or other mortals because the gods want him all to themselves. This can cause him to feel lonely and misunderstood. Secondly, the gods' possessive behavior can attract the attention of other powerful entities, either out of envy or a desire to use Percy against the gods. This can result in new and unexpected threats emerging. Moreover, Percy himself may struggle with his identity and purpose as he is constantly being pulled in different directions by the gods' possessive natures, which can make his character development more complex and engaging.
Zeus is often one of the main gods showing possessiveness. He sees Percy as a powerful asset or a potential threat, so he wants to keep Percy in check. Poseidon, as Percy's father, also shows possessiveness in a different way. He wants to protect Percy but also use his powers for his own purposes sometimes.
Hestia's possessiveness can shape the plot in many ways. It might lead to Percy being isolated from other characters who could be important to his development. This in turn can create a series of events where Percy has to either break free or come to terms with Hestia's possessive nature. Also, it could attract the attention of other powerful beings who either oppose or support Hestia's possessiveness, adding more twists to the plot.
It can create conflict. For example, if other characters don't like Jason's possessiveness, it can lead to arguments or even fights.
Percy may become more reserved. With Artemis being possessive, he might start to hold back his normal, outgoing nature. For example, he may not be as quick to jump into new adventures or make new friends.
Probably Poseidon, as he is Percy's father and has a vested interest in his son's well - being. Zeus might also be protective in some cases, despite their past differences, as Percy is a hero who often saves the world which benefits Zeus's realm as well.
In the fanfiction, Percy's possessiveness might also be demonstrated by his need to be included in all of Annabeth's plans. He may feel left out or threatened if she starts making plans with other people without him. He wants to be a part of everything she does, almost like he owns a part of her time and attention.
Well, without reading the specific fanfiction, it's hard to say exactly who Percy is. But generally, in a 'champion of the gods' scenario, Percy would be a central figure. He might be a hero with unique powers, like being able to control certain elements or having superhuman strength. He could be a character who has to face various challenges and tasks on behalf of the gods, kind of like a chosen one in a fantasy story.
Luke's possessiveness can change the alliances in the fanfiction. Other characters might side with Percy against Luke, or some might be influenced by Luke's possessive behavior and turn against Percy. This reshapes the power dynamics in the story.
The gods might show their protection in various ways. For example, they could directly intervene in battles Percy is in, using their divine powers to shield him from harm. They might also send him signs or omens to guide him away from danger.
Zeus is a possibility. As the king of the gods, he might see Percy's potential and adopt him to have an ally among the demigods. Another could be Poseidon, since Percy is already his son in the original story. It would be an interesting twist to have Poseidon formally adopt Percy in a more divine way.