Frisk halted in her steps, eyes wide with surprise. Standing before her, in the hallways of her very own school, were the large number of her monster friends. How many years had it been since she'd seen them. Of all the possible scenarios for a reunion, this was certainly not how she thought it'd play out.

"Hey Kiddo". A familiar voice caught Frisk's attention. It was Sans. "Thought we'd decide to finally visit, since without us you'd probably be a bit… bonely".

"Beep beep beep", the alarm continued to buzz, waking Frisk up as she slapped the alarm off, somewhat annoyed. It was her second semester of her first year in high school. She brushed her teeth and got dressed for school. Plaid skirt reached just short of her knees, white blouse complete with her own blazer. She clipped on a red band around her upper arm, being student council president, she couldn't afford to mess around when it came to uniform. The prospect of being looked up to as the best student role model, it filled her with determination.

Frisk analysed her reflection in the mirror, she'd kept her hair short for nostalgia's sake, reminding her of her days in the Underground. But despite that, her old friends probably would not even recognise her anymore, it came with the package deal of puberty.

"It's okay", Frisk encouraged herself, "The seal's been broken, and they must be enjoying themselves in the Overworld now."

Frisk headed down for breakfast with her favourite goat-family, Toriel, Asriel and Asgore.

"Hey Frisk, breakfast's already made, aren't you a little more late than normal this morning?" Asriel poked fun at Frisk. Asriel was the kindest brother-figure Frisk could ask for, although they had their share of sibling antics.

"Oh shush, Asri, I'd only just slept in a little," Frisk stuck her tongue out to Asriel.

Frisk had been kindly adopted after the seal had broken. They weren't her real family of course, but it was a "family" as it could be.

After breakfast was done, Asgore would head out to work, he was always busy – being the representative of monsters. Monsters were able to assimilate into human society pretty easily, being able to keep their own culture and values. But of course, discrimination was still evident. Asgore worked hard to minimise the divide between humankind and monsterkind.

As for Frisk, she and Asriel would be driven to school by lovely goat-mom Toriel. She and Asriel had some things good things going for them with a teacher as their mum. But this also meant that Toriel would still have a very close eye on them in school.

"We've finally arrived!" Frisk stretched as she and Asriel entered their homeroom classroom.

"Hey Prez, hey Azzi", Moki the Monster Kid greeted them, followed by many others in the classroom.

"Heya Moki", Frisk waved at him and the others as she passed, finally reaching her seat by the window next to Muffet. "Hey Muffet, how have your holidays been?"

"Oh same old, same old, the bakery's booming lately, which is good, you should have visited us during the holidays, the spiders sorely miss you". Muffet boasted of her bakery quite haughtily. Frisk was proud too, having a friend that saved a whole species of arachnids with just baked goods was nothing to sneeze at.

Frisk and Muffet continued to converse, monsters were scarce in the school, so Frisk cherished the few familiar faces that she knew from the Underground-she glanced subtly to Asriel's direction. It also meant that the few monsters were quite popular, both as novelty partners as well as because of their overall kind nature. Asriel especially, was surrounded by a plethora of human girls, whom he'd innocently try and avoid out of shyness. "How unpleasant" Frisk said to herself about the girls.

"Oh honey, why don't you just confess to Asriel already?" Muffet said nonchalantly.

Frisk had almost fallen out of her chair from surprise, "E-e-excuse me? He's my brother." Frisk put a lot of emphasis on 'brother'. She was complete flustered, red from ear to ear.

"Frisk, everyone knows that you two really aren't siblings," Muffet sighed. "It's clear that you love him. Honey, you even live with him, what's the hold up?"

"W-well, I don't really like him in that way… maybe?" Frisk stuttered a little. She wasn't sure herself. Back when she was in the Underground, there was someone else that Frisk cared about – she remembered his cold bony hands, and the fluffy blue jacket he'd always worn. But he was gone now. It'd been so long since Frisk had even thought about them. Asriel was more on her mind lately, in a 'NOT ROMANTIC WAY', Frisk would tell herself.

"Dear, you're just lying to yourself", Muffet laughed and teased Frisk, "anyway, I'll be rooting for you. You know I always do", Muffet winked at Frisk with encouragement.

Soon enough, the bells tolled, signalling the start of homeroom.

"Frisk, can you head over to the office, the principal would like to have a word with you". The human teacher said. Frisk responded promptly and headed for the office. There was a pit in her stomach, she could get nervous too.

Finally reaching the office, Frisk froze. Several figures stood at the front of the office, all familiar. The school staff had thought of bringing in new monsters for "positive discrimination", hoping to equalise the number of humans and monsters but this?!

Staring back at her was a pair of eyes, one blue, one white. Clothed in the school's uniform, albeit slightly messily, topped off with that familiar blue fluffy jacket. "Hey Kiddo. Thought we'd decide to finally visit, since without us you'd probably be a bit… bonely".

"SANS, YOU DORK." Another familiar voice called, "IT'S BEEN SO LONG SINCE WE LAST MET THE LITTLE HUMAN AND YOU GREET HER WITH ANOTHER SILLY PUN." Papyrus! He too was neatly wearing the school uniform, but it seemed he couldn't bring himself to abandon that red scarf of his.

"S-Sans, Paps!" Frisk was at a loss of words. "Even Alphys and Undyne are here too, what're you all doing here?" Alphys hunched in a nervous pose gave a wry smile, she still wore that labcoat over her neat uniform. Undyne neglected her uniform most of all, she must have hated the stiff feeling of a new school blouse. Frisk knew that she did.

"Oh Frisk, you're here", The school principal called from behind them, "We thought we'd finally ride the idea of a school with both many monsters and many humans, these 4 are the first batch of monsters. They're in your year of course, so the staff thought it fitting for you to be the one to tour them around, show them the ropes". He was absolutely beaming from his idea.

Well, Frisk didn't mind, they were her friends after all. Truth be told, Frisk was more than happy. "Of course sir, I'd be happy to", Frisk replied with a smile. She turned her head slightly and watched Papyrus shout enthusiastic about school, whilst Undyne shot down the idea. And Alphys hiding by Undyne with evident fear as well as the ever nihilistic Sans, looking like he'd almost fall asleep while standing. 'They're my friends, it shouldn't be too hard", Frisk thought.

And with that, the start of Frisk's evermore exciting high school experience was able to begin.

Congratulations, you've reached the end of the first chapter!

I hope you liked it, I know High School AUs aren't everyone's cup of tea, but leave a review! Tell me what you think, constructive criticism is welcome.

No doubt my characters might seem OOC at times, and if this happens, sorry! And in this time, everyone in school is the same grade somehow. (JUST BELIEVEE).

Sorry there wasn't much SansxFrisk in this but more is coming, believe me.

I'm not sure if it was evident but I'm dabbling in a kind of shoujo-esque style. Or maybe I'll change it, we'll see as we go. :)