I'm not sure specifically as I haven't read this particular fanfiction. But generally, if Percy is a demititan in it, it might be about Percy having some sort of connection to the demititan world. Maybe he discovers he has demititan heritage and has to deal with the implications, like new powers or facing discrimination from other characters who view demititans differently.
One interesting aspect could be the unique character interpretations. In a fanfiction like this, the author might explore Percy Jackson's character in a new light as a Demititan, which could bring out different traits and storylines compared to the original series. It could also introduce new relationships with other characters from the Percy Jackson universe, adding depth and complexity to the overall narrative.
One similar fanfiction could be those that also focus on alternate identities for Percy Jackson. For example, fanfictions where he has a different parentage or is part of a different group within the Percy Jackson world. Another could be fanfictions that explore the darker side of the Percy Jackson universe, just like how 'Percy Jackson is a Demititan Fanfiction' might take a different and perhaps edgier approach to the character.
There might not be an exact match in terms of a demititan Percy. But you could look for fanfictions that play with Percy's nature in a major way. For instance, fanfictions where he is part - something else from the Greek mythology world. Browse through different Percy Jackson fanfiction collections and see if you can find something that has a similar concept of reimagining Percy in a different form or with a different role.
One great Percy Jackson Demititan fanfiction is 'The Demititan's Journey'. It delves into the life of a demititan in the Percy Jackson world, exploring their struggles and how they fit into the existing demigod society. The character development is really well - done in this one.
There's also a fanfiction where a female demititan is a healer. In 'The Healing Demititan', she uses her powers to not only heal the injured but also to bridge the gap between demititans and demigods. Her character is very inspiring as she uses her abilities for good in a world full of conflict.
I don't know for sure as I haven't read this particular fanfiction, but usually in fanfiction, Percy could be a character from a popular book, movie or TV series.
I'm not sure who Percy specifically is without reading the fanfiction. It could be an original character created by the author, or perhaps a reimagined version of a known character from a particular franchise that the fanfiction is based on.
In Percy tired fanfiction, Percy often shows signs of physical exhaustion. His usual energetic actions might be slower, like his sword - fighting skills not being as sharp. For example, in some fics, he might stumble during a fight instead of his usual confident moves.