Piper could be a main character too. She might be the popular girl at school, but also has the ability to charm people with her words, which is actually a power she has from her connection to Aphrodite. She uses this power to help her friends out of tough situations in the high school setting, like getting out of trouble with strict teachers or dealing with mean classmates.
Maybe there could be a school competition that is secretly being influenced by the gods. The teams in the competition unknowingly have to deal with various magical obstacles and challenges that are related to the mythology. For example, a track race where the track suddenly turns into a river like the Styx, and the runners have to find a way to cross it without getting dragged under.
Another interesting concept for 'Heroes of Olympus fan fiction' is to create a new adventure where the characters from different camps, like Camp Half - Blood and Camp Jupiter, have to team up in a completely unexpected setting. Say, they end up in a modern - day city that has been mysteriously cursed, and they need to use their combined powers and knowledge to break the curse.
Jason Grace is also quite popular. His leadership skills and his struggle to understand his place in both the Roman and Greek worlds offer a lot of potential for fan fiction. Writers can expand on his internal conflicts and how he deals with the different expectations from both camps.
Percy Jackson is definitely one of the most popular. He has a huge fan following from the previous series and his character is so well - developed with his powers over water and his sarcastic sense of humor. Another popular one is Annabeth Chase. Her intelligence and strategic thinking make her a great character to write about. Fans love to explore her relationships, especially with Percy.
You could do a story where the characters are swapped into different roles. For example, the usually brave hero becomes a coward and has to learn to overcome his new - found fear. Or perhaps a story where the characters are put in a completely new setting, like a modern - day city instead of their usual mythological landscapes. They'd have to adapt and still use their powers in this strange new environment.
Jason Grace is one of the main characters. He has leadership skills and is a son of Jupiter. He plays a crucial role in many of the group's adventures.
The plot is centered around the demigods. The Romans and Greeks must overcome their differences. There are seven demigods who are part of a prophecy. They face challenges like fighting the giants who are trying to overthrow the gods. Percy Jackson's journey is intertwined with the others. He has his own personal growth to deal with, especially when he gets involved with the Roman side. The characters travel to different places, both in the mortal world and in the mythological realms, all while trying to fulfill the prophecy and prevent a great war.
It's likely about the adventures in the world of 'Heroes of Olympus' presented in a visual novel format. It might follow the characters from the series as they face challenges, go on quests, and interact with the gods and mythical creatures of Greek mythology.