Another possibility is that it was a side - effect of a powerful curse or blessing. For example, if Percy was cursed to be more connected to the water, the gills could be a physical manifestation of that. Or if he received a great blessing from the ocean itself, the gills could be part of that package, making him more in tune with the underwater realm.
Well, it could make his breathing underwater effortless. He can explore the underwater world more freely without worrying about running out of air. It might also give him an advantage in battles underwater, as he can stay submerged for as long as he needs.
One idea could be Percy discovers he has a new ability related to his gills that allows him to communicate with underwater creatures in a more profound way. Maybe he can understand their ancient languages and has to use this new skill to solve an underwater mystery that threatens both the sea world and the surface world.
You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. AO3 has a wide range of Percy Jackson fanfics, and you can use the search function to specifically look for ones related to 'gills'. FanFiction.net also has a large collection, but the quality can vary more. Another option is to check out Percy Jackson - related forums where fans might recommend their favorite 'gills' fanfics.
Maybe it's a strange genetic experiment gone wrong. Some evil scientist in the fanfic world might have tampered with Naruto's DNA, adding some sort of aquatic - like genes that resulted in gills.
Yes, in some Percy Jackson fanfics, he could be depicted as a Titan. Fanfic writers often take creative liberties and might come up with unique storylines where Percy has Titan - like qualities or is even reimagined as a Titan for the sake of an interesting plot twist.
He might meet other inter - galactic beings. For example, some sort of space - faring demigods from a far - off galaxy. Or he could encounter powerful entities that are the rulers of other planets.
Well, it's hard to say for sure. Just because someone is named Percy Jackson Drew doesn't necessarily mean they like Percy fanfic. However, if they are a big fan of the Percy Jackson series, there's a good chance they might enjoy reading fan - created stories. Fanfic often offers unique perspectives and takes on the original story that can be really interesting for fans.
In Percy Jackson and Annabeth fanfics, the relationship between them can be developed in various ways. Some might show their daily life at Camp Half - Blood in more detail, with little arguments and sweet reconciliations. Others could take them on a quest that's not in the official series, adding new monsters and challenges for them to overcome.
Scars in Percy Jackson fanfic are not just physical marks. They can be a connection between the character and the mythology. For example, a scar that was given by a mythical creature might have some special power or significance. It could be a key to unlocking a hidden prophecy or a way to communicate with otherworldly beings. This adds an extra layer of mystery and magic to the story.