A likely main character could be Percy Jackson - like figure. He's a well - known demigod and having him get a call in class would be very in - character. He'd probably be a bit flustered at first, but then quickly switch into his heroic mode as he realizes the importance of the call.
Another option could be a new, original demigod. This would give the writer more creative freedom. They could create a demigod with unique powers and a distinct personality. When this new demigod gets a phone call in class, the readers would be on a journey of discovery right along with them as they figure out what the call means and what to do about it.
Perhaps the phone call is from a fellow demigod who is in trouble. Like, they're on a quest and need immediate help. The demigod in class then has to find a way to sneak out and go to their aid without getting caught by the teachers or other mortals. It could lead to all sorts of comical and tense situations as they try to balance their demigod duties and their school life.
In this kind of fanfiction, you'd have the demigods at the center. They could be new, inexperienced demigods just finding out about their powers. There would be their mentors, who might be more experienced demigods or even minor gods. These mentors could be the ones calling them during class to give advice or warn them of impending danger. Additionally, there could be other supernatural beings like nymphs or satyrs that are part of the demigod's world and are somehow involved in the events that lead to the calls during class.
One possible plot could be that a demigod is in the middle of a really boring class when they get an urgent call from their godly parent. This call could be about a new quest that they have to embark on immediately. So, the demigod has to figure out how to get out of class and start the adventure without raising too much suspicion among their mortal classmates.
Typically, you'll see well - known demigods like Percy Jackson. He's a very popular character in this kind of fanfiction as he has a lot of adventures and his own unique powers and personality.
The main characters are clearly Harley and Peter. Harley is the one making the call, and Peter is the recipient of the call. They are likely to be students in the same class or school.
Obviously, Percy would be one of the main characters. And probably some of his classmates who are with him on the ship that gets wrecked.
One possibility could be Percy Jackson as a demigod. He's well - known for his adventures in the demigod world. And for a wizard, Harry Potter could be a great choice. Their encounter would be really interesting as they both have very different personalities and ways of dealing with problems.
A son of Zeus could be a great demigod character. He has the power of lightning and is very strong and confident. As for the vampire, a centuries - old vampire who has seen a lot and is quite wise but also has a bit of a dark side. They could make for an interesting pair.
Percy Jackson would be an obvious choice. His skills as a demigod and his experience with different quests would make him a great character to be sent back in time. He could use his water powers in unique ways in different historical settings.
In this fanfiction, Harley might be calling Peter in class to ask for help with a difficult assignment. Maybe Peter is really good at a certain subject and Harley is desperate for his assistance during class time.