Summary: Leo and Reyna are new to Jupiter High, Nico is as much of a loner as ever, and Percy, Annabeth, Jason, and Piper run the school. What happens when Jason meets Reyna and realizes they know each other? When Luke's claims of having a college girlfriend might be true? Read and find out.

A/N: Hey guys! user detentionaire speaking. This is an awesome high school!AU I'll be writing with my friend octavianspajamas. We both have different writing styles so please excuse any style inconsistencies! This first chapter is written by me; octavianspajamas will write the second, I'll write the third, and so forth. I hope you enjoy! (Rated T for swearing, rating may change)

(Ships: Leo/Nico, Jeyna, Frank/Hazel, Percabeth, Percico, Jasper, and many others!)

Ugh. Nico scrunches his nose in disgust as a cool breeze plays with his shining, dark black locks of hair. Summer had come to an end already, and he is so not anticipating the first day of classes. In fact, he looks even less forward to the first day of eleventh grade, quiet whispers of Ghost King, freak, nerd bouncing around him.

Nico certainly isn't ugly — beautiful, actually, all pale porcelain skin and piercing eyes — but his lack of presence does not allow him to showcase these points of him.

He had been so invested in contemplating over school that he almost misses the bus pulling up in front of him. "Fuck," he breathes before jumping on and taking a seat in the back. A Hispanic kid with unruly dark brown hair and deep chocolate-colored skin is seated next to him, earphones plugged in as he mouths along to an unknown song.

Nico watches him out of the corner of his eyes, calculating and silent. The kid is attractive, and looks to be about his age, although he's never seen him around before. Maybe, Nico hopes, he'll even be one of the new eleventh graders. Suddenly, the boy besides him unlocks his phone screen, and begins to type a reply to a text. The world Leo pops up, which Nico assumes to be his name. It's a fitting name, he thinks, similar to Leone — lion in Italian: ferocious, strong, and imposing, just like Leo appears to be.

When Leo looks to his right, perhaps aware of someone's gaze burning into him, Nico blushes and focuses his stare elsewhere. He's been told by Hazel — conveniently missing today, since she'd claimed a high fever — that he has some sort of an intense stare, which tends to intimidate people at times. He misses Hazel greatly; they're basically twins, practically attached to the hipbone. Even though Nico has a different mother (long passed away), and their current stepmother is Hazel's birth mother, they've known each other since they were 4 years old. The implications behind them having the same father and being the same age is rarely brought up.

Head hitting the top of his seat, Nico thinks, Couldn't you have at least been here for the first day?

"Percy, you're going to be late!" Sally Jackson calls out loudly from the first floor. Springing out of bed, the one and only, forever good-looking Percy Jackson, sprints to the kitchen, where his mother sighs and slides two pancakes onto a plate. "You should learn to more responsible! By the way, Annabeth ringed up and is already on her way to pick you up. Hurry up now, I made you breakfast! Orange juice is in the fridge."

He shovels food into his mouth as fast as possible, leaving little time to no time to savor the taste. His mother is amazing, he thinks, as he rushes back up to change into tight black jeans and a... should he wear his Joy Division or Guns N' Roses t-shirt today? Contemplating briefly, he finally decides on Joy Division. His sleek black hair looks great, as always, and the darkness of his outfit brings out the sea green in his eyes.

A car horn beeps in the distance. Shit, he thinks, that must be Annabeth. He grabs his backpack and takes a quick look at the clock: 7:45. They have 20 minutes before school begins. Percy rushes down the stairs, kisses his mother goodbye, and is out of the house before he knows it.

Annabeth looks fantastic. She rolls the car window down and beckons him to the passenger seat. "I missed you," She mumbles before pecking him softly on the lips. He grins comically and slides down to sit besides her. "I missed you too, Wise Girl." Scoffing at the nickname, she turns to face forward, almost whipping him with her long, sunflower colored hair.

He coughs at the mouthful he almost inhales. "I hate you sometimes."

"No, you don't. You love me."

"Whatever," He says weakly. They both know Annabeth has won this round.

By the time Leo and Nico get off the bus, Piper and Jason are standing by the bike racks, surrounded by Silena, Drew, Beckendorf, and the lesser known jocks and cheerleaders. By the looks of it, Percy and Annabeth haven't arrived yet. When Leo rushes in front of him to walk into school, Nico holds him back. "Wait, kid, you can't pass that closely to the popular clique. They'll tear you apart. Come on, we have to go around."

Leo gives him a look like, What the fuck, are you okay? Nico sighs, takes his arm and drags him far away from the jocks and towards another entrance, "Look, you're new, right?"

He nods.

"Okay, so, I'm Nico. Nico di Angelo. ("I'm Leo," Leo supplies) I'm not popular, and neither are you, because you're new. I don't know where you're from ("Houston, Texas," he interrupts, and Nico is tempted to punch him), but we're in Beverly Hills now, and this is Jupiter High. We do things differently here, all right? If you don't want your head pushed into a toilet before the first semester is over, then I advise you stay away from the jocks, and don't talk to the cheerleaders." There's urgency in his voice, and he thinks he's got the point across, but the way Leo looks at him suggests that he's not going to follow anything he just said.

New kids are so frustrating. And, most of the time, quite attractive.

Homeroom is, unsurprisingly, quite uneventful. To Nico's pleasant surprise, Leo sits down next to him, and offers him a faint smirk whenever he looks his way. The infamous Stoll brothers are seated to the side, as well as Jason and Piper, much to his distaste. To top things off, Clarisse and Percy sit not far away, and glare at each other to no end. They have a testy relationship, if the word relationship can even describe the hatred they feel for each other. Percy is one of the oldest kids in the eleventh grade, and always hangs out with the current seniors, to the point that Nico sometimes forgets he isn't a grade higher.

As if to further prove his thoughts, Nico sees Grover and Rachel, two seniors, walk past in the hallways. They pause momentarily to wave at Percy, and then, almost surprisingly, at him. Although the two of them are both close friends with Percy and Annabeth, Nico has been friends with them since he was the only ninth grader taking Trig, and they were there to help him out. Nico likes Grover and Rachel a lot, since they don't really fit into any cliques; they're just there, pushing along high school, getting along with mostly everyone.

He looks to his right to see Leo scribbling into a notebook. Upon closer inspection, it turns out that he's sketching detailed plans of robot pieces, writing out intricate equations and what parts are needed for it to function.

"You like to build things, huh?" Nico asks him softly. Leo's cool, regularly unperturbed façade seems to be momentarily weaken, as if surprised someone would take notice and care — "I... yeah-" He clears his throat. "Yeah, I'm pretty into this stuff." Nico nods in approval, about to respond to his statement, when their homeroom teacher walks in with a bang.

"Hello, my newest upperclassmen. I'm Mr. D, and I'm 11-1's homeroom teacher. Chiron leads 11-2. I really don't care what you do in my class, just don't get on my nerves. All right?"

A chorus of yes and all right erupts from the classroom. Pleased, or at least satisfied, Mr. D leans back and unscrews a bottle containing a liquid that doesn't exactly appear to be water. No one questions him. He's about to take a second gulp when a new girl rushes into the classroom. He sits up abruptly, face twisted comically into a look of annoyance.

"I'm really sorry I'm late," She pants out, "I was talking to my advisor about my classes and got lost afterwards!" Mr. D rolls his eyes and points at the empty seat to Nico's left, and she sits down gratefully. The girl in question has dark skin and gorgeous long black hair that curls at the bottom and passes down her shoulders. Her eyes, although a boring shade of brown, seem to shine defiantly, and Nico feels like he could get lost in them at any moment.

"Okay guys, these are our two new students in this homeroom. The boy over there is Leo Valdez, and this is..."

"REYNA?!" Jason exclaims in shock, at the exact same moment Mr. D mutters out, and completely butchers the pronunciation of, "Reyna... Ramírez...Arellano?"

Popping her gum in disgust, Piper stares at her boyfriend, mouth opening to question, "You know this chick?"

TO BE CONTINUED