Hello! My friends helped me develop this AU and I'm really excited to share it! I hope you enjoy! This is a series of oneshots and not a full, fluid story.

Astrid played with the strap on her book bag with her free hand as she made her way through the crowded halls. People were excited to see each other after a long summer, so she couldn't blame them for being loud, even though it was annoying that they were blocking the way.

A good handful of them had a few inches on her, and it made her even more uncomfortable than she already was. Most freshman didn't have to go so far down the math hallway, as Algebra 1 and General Math had classrooms at the end of the hall closest to the main hallway, so she was an anomaly.

She glanced again at her schedule as she approached the second to last room on the right. The crowd was thinner, so she drifted to a stop in front of the door, just to double check the blue number against the black typed ones on her folded, crinkled paper.

A kind woman, no more than thirty years old smiled at her from the classroom. "You must be Astrid, come on in!"

Astrid, confused as to how the teacher already knew her name, folded her schedule and shoved it back into her pocket as she stepped in the room.

"Sorry, I should explain. I figured you were Astrid because most upperclassmen don't have their schedule out and look so nervous before class starts. You're my only other freshman this year. I'm Ms. Hallen, welcome to geometry! It's nice to meet you."

"You too," Astrid replied with a smile.

"You can go ahead and take a seat anywhere, I don't assign seats. The rest will come in just before the bell, so you have your pick." Said the woman before turning back to her computer, where she was pulling up the syllabus on the projector screen.

Astrid turned around to face the rows of empty seats. There was only one other person in the class so far as it was early, and Astrid recognized him right away even bent over a notebook, drawing.

It was Hiccup.

Well, Henry technically. But no one at school ever called him that.

Hiccup was the son of Stoick and Valka Haddock. Stoick was in charge of the crew on their little town's most well kept fishing vessel and Valka was the head veterinarian at the animal hospital downtown. Everyone knew the Haddocks, and all the kids knew Hiccup.

He was a scrawny thing, awfully quiet, but sarcastic when given the chance. In elementary school, he was in the Gifted and Talented program and he was also pulled out for occupational therapy. If Astrid remembered correctly, Hiccup was autistic to some degree, although it was much more obvious when they were little.

Because he was pulled out of class just about twice as much as anyone else, he was rather small, and would rather draw than try to talk to people growing up, mostly everyone had decided he was a bit of an outcast early on. Even as he grew up and his social skills developed and he tried to make friends, he was ignored at best, and bullied at worst. He kept to himself most of the time in middle school, but Astrid knew that he was as smart as ever.

She decided to sit next to him, on his left, just off from the center. When she dropped her dark red backpack beside him, he looked up in surprise.

"A-Astrid?" He asked. "Are you gonna… sit here?"

"Yeah," she replied nonchalantly as she dropped into the seat. "Is that a problem?"

"N-no, not at all… just… curious." He responded, the tips of his ears going red, before going back to whatever he was drawing in his notebook.

Astrid fished a binder and a pen from her bag and set them in front of her before pulling her phone out of her pocket to check it. There was a text from her friend Ruffnut, complaining that her brother was going to make them late.

Astrid smiled to herself and texted back a quick reply before Ms. Hallen appeared in front of both her and Hiccup. "Are either of you familiar with the building at all?"

Hiccup shook his head no, but Astrid nodded.

"I know a little bit, my big sister went here a few years ago. And I play soccer, so I've been around over the summer."

"Ah, well that's handy. Before the rest of the students decide to come in, I can explain where your next classes are if you'd like, just so you're not lost after class."

"That would be nice, I have no idea where I am or where I'm going." Hiccup said to her before sliding his schedule out of the clear cover of his binder and turned it around so the teacher could see.

Astrid was just planning on to winging it, but after Hiccup pulled out his schedule, she took her schedule out of her pocket.

"Hmm," mussed the teacher as she peered at Hiccup's schedule. "You have English next… that's down a ways… they should really give you maps! Okay so, you're going to turn right out of this room, turn right into the main hallway, and walk past the science wing, which will be on your left, and your classroom will be the first one on the left side of the hallway just after."

"So it's in the main hallway?" Hiccup clarified.

"Yes,"

"Thank you," Hiccup replied.

"Of course. And you?" asked the teacher, turning to Astrid, who handed her the schedule. "Hm, oh you have biology! Okay, so you're going to go with Henry, but you'll turn down the science hallway and I'm pretty sure your class will be on the right."

"Thanks," Astrid nodded, taking her schedule back.

At that moment, a few other students started to file in and the teacher turned to greet them. Hiccup slid his schedule back into the front of his binder before returning yet again to his drawing. Astrid sighed and flipped open her binder to the first binder tab. She wrote 'Math' on it before turning it to fresh page of loose leaf paper.

More people filed in, the bell rang, and then attendance was taken.

Astrid always found the first day of school to be mundane and repetitive. Going over expectations and passing out textbooks was only so interesting.

Hiccup was jotting notes on his syllabus that was passed out and working on doodles simultaneously. Astrid twirled her pen as she listened.

The teacher finished before the bell, allowing a moment to pack up and then a mad rush happened as the tone sounded throughout the school.

Astrid hung back from the crowd, despite being already packed. She simply didn't want to be trampled. It just so happened that Hiccup was ready just as she was planning on going, and she followed out the door after him.

He walked briskly, with his head down, peering at the binder with his schedule that he hadn't put in his bag.

They were jostled as they walked, and Astrid could've sworn she heard Hiccup whimper after someone yelled and slammed their locker, but she wasn't sure.

When they got to the science hallway, Astrid turned down it, following her teacher's instructions.

"Uh, have a nice day, Astrid." Hiccup called over his shoulder as he walked on to his class.

She stopped to a halt in the middle of the hallway in shock, making a senior boy walk right into her.

"Watch it," he snipped, walking around her.

She shook her head before turning into her classroom.

Why did Hiccup want to be nice to her? She had never been nice to him.