Grover could be a part of it as Percy's best friend. He could give Percy advice about his relationship with Calypso and also get involved in some of the school's crazy events with them. Leo could also be added as the school's resident inventor who helps Percy and Calypso with any technical problems they face during school projects or events.
Obviously, Percy and Calypso are the main characters. Percy, who has had many adventures as a demigod, and Calypso, who has her own unique story and powers as a nymph. In this type of fanfiction, their interactions, especially those related to the 'lemon' aspect, whether it's something like a lemon - themed magic or just sharing a simple moment over a lemonade, are what drive the story forward.
The main characters are Percy, who is brave and resourceful, and Calypso, who is both powerful and alluring. In the context of the chaos fanfiction, they are the ones who will drive the story forward. Their personalities, Percy's determination and Calypso's grace, will be on full display as they interact with the chaotic elements around them.
Grover Underwood could be included. His knowledge of nature and his ability to sense danger could be very useful. He could provide some comical relief in the midst of the serious prophecy - related events. And his loyalty to Percy would ensure that he is always there to support him, even when dealing with the often - prickly Artemis.
Well, Annabeth could be added. She would be really important as she is Percy's love interest. Her intelligence and strategic mind could play a big role in dealing with Gaea. Maybe she tries to find a way to break Gaea's hold on Percy if Gaea has some sort of power over him. Another character could be Nico di Angelo. His powers over the dead might be useful in uncovering secrets about Gaea's past and weaknesses. He could also be a voice of reason for Percy when Percy is in a difficult situation with Gaea.
One character that would be really good to include is Circe. She has her own island and magic, and her interaction with Calypso could be fascinating. She might be jealous of Calypso's new relationship or try to use it to her advantage. Poseidon could also be included. As Percy's father, he might have an opinion on Percy's connection with Calypso. And finally, Thalia. She could be the voice of reason for Percy, helping him figure out his feelings and what to do about his relationship with Calypso.
You could add a new demigod character. Maybe a child of Hecate who can use magic in interesting ways around the school. For example, she could make the lockers disappear or change the school cafeteria into a magical forest for a short time. Another character could be a satyr who is pretending to be a normal student but is really there to protect the demigod students. He could be the one who always seems to be eating strange things from his backpack, like enchanted herbs.
Another great addition could be Circe. She has a lot of knowledge about magic and the supernatural. In the fanfiction, she could be an ally or an enemy. If she's an ally, she could teach Percy and Artemis some spells to combat the chaos - influenced threats. If she's an enemy, she could be working with the forces of chaos to try and gain more power.
Obviously, Percy and Artemis are the main characters. Percy, a demigod with Poseidon's powers, often brings his adventurous and sometimes reckless nature into the high school setting. Artemis, the goddess of the hunt, is strong - willed and independent. Their interactions are what drive most of these fanfiction stories.
Obviously, Percy and Calypso are the main characters. Percy, with his heroic deeds and complex past, and Calypso, the lonely figure on her island. Sometimes, other characters from the Percy Jackson universe like Annabeth might also be involved, perhaps she tries to convince Percy to come back but fails as he has made up his mind to be with Calypso.
Piper McLean could be a great addition. Since she has some connection to Aphrodite already. She could either help Aphrodite in her plans or try to protect Percy from her. And of course, we could add some minor gods or goddesses like Eros. He could be Aphrodite's little helper in creating chaos with love arrows, which would definitely fit in with the lemon aspect of the fanfiction if it involves some love - related mischief.