In fanfiction, the relationship could be developed by exploring their family ties. Since Percy is a demigod and Ares is a god, there could be some underlying connection through the divine family tree. Maybe they discover that they are related in a more distant way than they thought. This could lead to Ares having a more protective side towards Percy, or Percy seeing Ares in a less antagonistic light. Also, they could be forced into a situation where they have to communicate their feelings and motives clearly, like being trapped in a magical prison together. This would make them open up and start to build a more complex relationship.
It could be depicted as a tumultuous one. Ares is all about war and aggression, while Aphrodite is love and beauty. They might constantly be at odds, yet also drawn to each other. In a Percy Jackson fanfiction, their relationship could be shown through their bickering and secret meetings. For example, Percy might stumble upon them arguing in a hidden grove about whether love or war is more powerful.
Characters like Annabeth could be developed by exploring her jealousy or concern when Percy is spending so much time at Ares High School. She might try to infiltrate the school in some way to keep an eye on him. And for the Ares - influenced characters, you can show their internal conflict between following Ares' brutal ways and their own sense of right and wrong as they interact more with Percy and his friends.
Their relationship could start off rocky. Since Ares and Poseidon are not exactly buddies, there might be some built - in tension. But as they are forced to work together, they could gradually see each other's good qualities. For instance, Percy might notice the daughter of Ares' loyalty and courage in battle, and she could see Percy's kindness and leadership skills.
In Percy Jackson fanfiction, Ares is often portrayed as a very aggressive and war - hungry figure. He might be shown as having a short temper and being quick to anger, much like his depiction in the original series. For example, he could be seen starting battles or conflicts just for the sake of it, and his followers might be depicted as equally bloodthirsty.
Well, it could start with mutual respect. For example, Percy respects Artemis's power and her role as a goddess. Artemis, in turn, could come to respect Percy's courage and his ability to survive against all odds. They could then start to work together on small tasks, like protecting a particular area from monsters. As they spend more time together, they might start to trust each other more, and their relationship could grow deeper.
There could be Clarisse. Since she is Ares' daughter in the original Percy Jackson series, she might play an important role. She could be either jealous of Percy getting her father's attention or become a sort of mentor - like figure to him. Another character could be Annabeth. She might be worried about Percy being adopted by Ares and try to rescue him or at least check on him regularly.
In fanfiction, the concept of Ares being possessive of Percy can also stem from the idea of forbidden or complex relationships. The contrast between Percy's more heroic and noble nature and Ares' war - like and often brutish ways creates an interesting dynamic. Ares may view Percy as a symbol of what he can't be, and his possessiveness could be a way of trying to corrupt or change Percy to fit his own view of the world.
Most of the gods would be confused at first. Hera might see it as an opportunity to manipulate the situation for her own ends. She could try to use Percy's new connection to Ares to create more chaos or to further her own plans. Poseidon would be very conflicted. On one hand, he has a connection to Percy as his son, but now Percy has this new link to Ares which could put Poseidon in a difficult position among the other gods.
In fanfiction, the connection between Percy Jackson, Ares, and Alsh High School could be really interesting. Ares is the god of war, and Alsh High School could be a place where he wants to stir up some chaos. Percy, on the other hand, is often in the business of restoring order. So, perhaps Ares is using the school as a battleground of sorts, with students unknowingly caught in the middle. Percy would then have to navigate the high school's social and physical environment to face off against Ares and protect the innocent students.
Well, it could be about Percy discovering he has this unexpected connection to Ares. And then he has to deal with the reactions of his friends like Annabeth. Some of them might be distrustful of this new relation. Percy would then try to find out more about his connection to Ares through exploring old prophecies and ancient sites, all while trying to keep his regular demigod duties in check.