Another theme is friendship. Since Percy is cautious, his friends play an important role in either encouraging him or respecting his boundaries. Fanfictions often explore how these relationships are affected by his cautiousness. For instance, his friends might need to be extra patient with him at times.
One popular Percy Cautious fanfiction is 'Percy's New Adventure' which takes Percy on a journey through a magical forest he has never explored before. It's full of exciting encounters and character development.
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.
In this fanfiction, Percy is likely a character who has been given the role of the king of monsters. Maybe he has some special powers or a unique backstory that led to this status.
It could also be Percy Weasley from the Harry Potter series. He's a Gryffindor and has his own personality quirks. Fanfic writers might focus on his intelligence, his loyalty to his family and friends, and his role in the wizarding world to make him the 'hottest guy' in their fanfictions. There are many aspects of his character that can be explored and enhanced in fanfiction to give him that 'hot' quality.
Percy could be a fan of the original work that the fanfiction is based on. Maybe he's someone who has a deep understanding of the source material and thus is in a good position to break down the fanfiction.
Well, without reading the specific fanfiction, it's hard to say exactly who Percy is. But generally, in a 'champion of the gods' scenario, Percy would be a central figure. He might be a hero with unique powers, like being able to control certain elements or having superhuman strength. He could be a character who has to face various challenges and tasks on behalf of the gods, kind of like a chosen one in a fantasy story.