Well, it's possible that such a fanfiction exists given the creativity of fanfiction authors. They like to experiment with different relationship dynamics. But considering the popularity and the nature of Annabeth and Percy's relationship in the source material, this would be quite a shocker. It could also attract a lot of criticism from fans who are attached to the original relationship, while others might be interested in seeing how such a different plot would unfold.
I don't think it's a highly popular fanfiction genre in general. Popularity in fanfiction often hinges on how closely it adheres to the elements that fans love about the original source material. In the case of Percy, many fans are attracted to his demigod status and the fantastical world he inhabits. However, that doesn't mean 'percy is born a mortal fanfiction' has no audience. There are always those who enjoy exploring different 'what - if' scenarios, but it's likely not as mainstream as other types of Percy - related fanfiction.
Isolation can be a theme too. Percy might feel isolated in the mortal world as he no longer has the same connection to the demigod world. He may feel like an outsider. Additionally, the theme of self - discovery is present. As he experiences life as a mortal, he discovers new aspects of himself, like hidden talents or interests that were overshadowed by his demigod life.
Percy's character development in this fanfiction might start with a sense of loss. Losing his demigod status means losing a big part of his identity. He may become more humble as he realizes the challenges that mortals face every day. As he adapts to mortal life, he could become more self - reliant in different ways, like having to earn money for the first time or deal with normal school problems without relying on his powers.
Yes, there are some great ones out there. You can start by looking on fanfiction websites like Archive of Our Own. Just search for 'Percy Jackson is a mortal hunter' and you'll find a variety of stories with different takes on the concept. Some might focus on Percy's new role as a mortal hunter, how he adapts to it, and the challenges he faces in this different world compared to his demigod adventures.
A sleepover with Percy and his mortal friends could be full of fun and adventure. They might share spooky stories, like Percy telling tales from his demigod experiences that make his friends' jaws drop. Maybe they play some crazy games that only Percy could introduce, like a modified version of Capture the Flag using his powers in a safe way.
One idea could be that Artemis becomes mortal to understand Percy's human world better. Maybe she's intrigued by his heroism and wants to experience life from his perspective. This could lead to a whole new set of adventures as she struggles with mortal limitations.
Luke Castellan could also be seen as one of the strongest mortals in fanfiction. He was a very skilled swordsman and had a lot of charisma which he used to lead others. Even though he made some bad choices, his abilities were formidable.
In Percy Jackson fanfiction, one factor that makes a mortal strong is their knowledge. For example, if a mortal has in - depth knowledge about Greek mythology, they can use that to their advantage. They might be able to predict the actions of monsters or demigods based on the myths. Also, physical combat skills are important. Mortals who are trained in martial arts or sword - fighting can hold their own against some threats.
Their demigod past can give them unique skills. Percy's ability to control water, even if it's not as powerful in the mortal world, can still help him in situations like dealing with a flooded basement or helping at a local pool. Annabeth's strategic mind from her demigod battles can make her excellent at things like planning community events or solving problems at work.