I’m going to direct you, first of all to this post, submitted by pinkypirate to jupiterascendingheadcanons, because it’s so on point I can’t even. I don’t really enjoy school AU’s, personally, because I can’t imagine why anyone would want to write about being in school when I have spent my life so desperate to get out of it. But out of a will to be sporting, for your consideration:
Jupiter: Absolutely in the astronomy club, if there is one, but I can also see her in theatre tech, figuring out lights and sound and making the drama club look good. She’s not technically on the wrestling team, but shows up to their events.
Caine: Wrestling club. He’s especially good in bouts against larger competitors, and he likes it because it’s a solitary activity. He only has to rely on himself. Jupiter likes to come out to watch these because have you seen those tights?
Kiza: In theatre tech with Jupiter, and queen of the Green Team.
Balem: The headcanon puts him in tennis, which I think is perfect because he gets to scream and hit stuff at the same time. He’s very intense, gets remarkable grades, and he’s almost always scowling or about to scowl. Everyone agrees that Balem Abrasax is about as angry as he is busy. And he’s very, very busy. That said, he’s great at networking thanks to Kalique’s contacts and Chicanery Night.
Kalique: Head of the student council. She does everything Balem does backwards and in heels. Except tennis. She avoids the tennis court like it has a toxic miasma hanging over it. She’s personable, well-liked by her peers and teachers, and she’s in the school choir and drama club.
Titus: Dates everyone. Has dated everyone. He’s in clubs almost peripherally, depending on who he’s with. As such, he also has a fair amount of dirt on everyone. Everyone thinks he’s dated Famulus, but that’s not the case; they’re just incredible friends. Mostly because she will always and forever turn him down. He’s in drama club with Kalique, which she secretly despises.
Mr. Night: Probably that guy who’s in every club and knows everyone, but it’s always a surprise that he knows so-and-so from such-and-such a club. He is a spymaster in-verse, after all. That means if he isn’t everywhere, he has contacts everywhere. He’s actually on the theatre tech crew with Jupiter, and they get along surprisingly well (but if Balem Abrasax is around, they’re totally not friends). He’s very close with Greeghan, who is not only his muscle, but also his protector when he gets on the wrong side of the wrong clique - navigating between clubs can be tricky, sometimes.
Greeghan: Quarterback. He’s terrifying, methodical, and on top of it all he gets good grades (tutored by Chicanery Night in exchange for protection from would-be bullies). He was on the wrestling team for awhile, but couldn’t take getting trounced repeatedly by Caine Wise.
Famulus: Student council, secretary. Titus wheedled her in to get an ear in on Kalique, but she doesn’t mind because Famulus is indispensible in arranging student events and pep rallies and so forth.
Diomika Tsing: Captain of the rugby team. She’s the right mix of scrappy and level-headed, and she can work with anyone. No one fucks with Diomika unless they want to deal with her crew. They’re very close, and operate on the mantra “Do no harm, but take no shit.” She’s also very active in social justice clubs on campus.
Razo: Totally cuts out sometimes to smoke behind the school with Ibis. She’s an underachiever, who could be great if only she didn’t find this whole “academia” thing to be utter nonsense. She’s found a like mind in Ibis, and they’ve been known to take the same courses just to walk out of them. Falque joins sometimes, but they never let him in the loop on purpose to see what he’ll do. She’s on the rugby team, when she’s not on academic probation.
Ibis: Besides cutting class because it all seems pointless and arbitrary, Ibis actually belongs to the art club. And you can bet he’s tagged the school on more than one occasion. They keep painting over it, but he can’t be stopped. Razo and Falque are his lookouts, and he posts his tags on an instagram account, claiming to have “found” them.