Percy's character would change in many ways. He would develop a stronger sense of loyalty towards Hestia and everything she stands for. This could mean that he becomes more protective of the things that are important to her, like the hearth and the idea of home. He might also become more of a peacemaker. Given Hestia's role as a goddess of harmony in the home, Percy could start to resolve conflicts between demigods more often. He would be more in touch with his emotions related to family and belonging, and this could make him a more well - rounded and mature character compared to his earlier self.
Percy would likely become more nurturing. Since Hestia is associated with the hearth and home, Percy might pick up her values of warmth and care. He could be more empathetic towards others, especially those who are homesick or lost. For example, he might be more patient with new demigods arriving at camp.
His relationship with Annabeth would likely be different. With Hestia's influence, Percy might become more domesticated. Annabeth could be both intrigued and a bit confused by this new side of Percy. She might initially be skeptical of Hestia's adoption but later see the positive changes in Percy.
Percy would likely become more studious. Since Athena values knowledge, he would be more interested in learning about history, magic, and other aspects of the demigod world. He might spend more time in the library at Camp Half - Blood, much to the surprise of his friends. His relationships with others would also change. He could be more aloof at first as he tries to adapt to his new role, but as he grows into it, he would form deeper, more intellectual connections with those around him.
His relationship with Annabeth would change. She might be a bit jealous at first of Percy's new connection to Hecate. But then she would see how his new powers could be useful. They would have to learn to work together in a new way, with Percy having different abilities to bring to the table. His friendships with other demigods like Grover would also be different. Grover might be a bit in awe of Percy's new magical side. Percy would also have to form new relationships with the followers of Hecate, who might be very different from the demigods he's used to.
When it comes to his relationship with Hera herself, it would be complex. At first, Percy might be resentful or confused about being adopted by her. But as time goes on, he might start to understand her in a way no one else does. Hera could start to see Percy as a true son, and this could lead to a deep, if somewhat unusual, bond between them. Percy would have to balance this new relationship with his existing ones, and it could lead to some really interesting character development and story arcs.
Percy's relationship with the male demigods would change significantly. Some might see him as a traitor for joining the Hunters. However, he would also gain new allies among the Hunters themselves. His relationship with Artemis would be that of a mentee and mentor at first, but as time goes on, it could develop into a more family - like bond. And his relationship with the gods would be different too, as he's now under Artemis's protection, which might make some gods view him in a new light.
One interesting plot could be Percy's new relationship with Hestia. Since Hestia is the goddess of the hearth, Percy might learn a different kind of warmth and family from her. Maybe she teaches him some ancient secrets related to the hearth that give him new powers or ways to defend himself. Also, how Percy interacts with other gods and demigods in this new situation would be exciting to explore. For example, some might be jealous of his special relationship with Hestia while others might try to use it for their own gains.
Percy would likely be more in tune with the concept of home and family. Since Hestia represents the hearth, Percy might be more nurturing and protective. He could develop a stronger sense of responsibility for the well - being of his friends as if they were his family.
Percy's character would likely become more versatile. He'd start to incorporate Apollo's traits like confidence and a love for the arts. His power set might expand to include things like healing, which is associated with Apollo. He'd also become more in tune with the sun and light, which could change his overall perspective on things.
Percy's relationship with his mortal family would also be affected. Since Hestia is all about home and family, Percy could be more involved in protecting his mortal family. He might use his new powers and influence to ensure their safety and well - being. This could bring him closer to his mother, and he could also start to learn more about his family's history and heritage through Hestia's connection. And with his friends at Camp Half - Blood, he would be seen as a sort of protector of the home - like atmosphere there, which could strengthen his bonds with them in a different way.
His relationship with Annabeth would be really interesting. At first, Annabeth might be shocked and a bit unsure how to act. But they could also develop a deeper understanding of each other as Percy now experiences things as a girl. With his male friends, like Grover, there could be some awkwardness, but also a chance for them to see Percy in a new light and strengthen their bond in different ways.