Long ago two races lived in perfect harmony with one another. The Humans and the Monsters. However darkness would overcome the humans; slowly corrupting them and morphing them into jealous and hateful beings.

One day war would break out between the two races. The monsters fought a valiant battle however, due to the superior technology and larger number of the humans forces, the monsters were defeated and forced underground with a magical seal preventing them from ever returning to the surface world again.

Many years later

Mt. Ebbot, 201X

It was a rather cold evening near the rugose and rough-hewn mountain of Mt Ebbott. A ring of snow covered the sky-piercing mountain and blanketed the nearby forestry with layers of thick; crisp, white, snow.

The sound of crunching echoed throughout the quiet forest; disrupting an otherwise peaceful night. Trekking through the cold, somewhat refreshing, air. A boy would cautiously advance into the great unknown. His short, kinky hair frizzled slightly due to the moisture present within the air. He possessed eyes that were a deep and lustrous black; similar to the shade found on a beetle's wings. However if one were to look closely, they'd be able to see the specks of brown that dotted his iris.

He couldn't comprehend how his family had coaxed him into agreeing to go on a camping with them. You see, nature and him simply didn't blend well. You could say that nature and him had some sort of love-hate relationship. While he could appreciate the beauty of it and admired the diversity; he despised a lot of the creatures that came with it.

Namely mosquitoes. Speaking of mosquitoes. His hand slammed hard on his smooth ebony skin; the crack of skin connecting with skin echoed throughout the nearby forest and he winced in pain. He hadn't meant to put that must force behind it, but he was honestly getting sick of being a source of food for these pests.

I mean really. Why did such creatures even exist? What was the point of them? All they did was irritate everyone and helped to spread diseases.

He groaned in annoyance as the incessant high pitched buzzing being emitted from the insect's wings intensified once it neared his head.

"OH MY GOD!" he shouted angrily as he began to frantically swipe at the air in a vain attempt to rid himself of the filthy bloodsuckers. Eventually he would realize that his efforts were in vain as the moment he batted them away they seemed to come back in greater numbers. Growling in annoyance he trudged forward; his feet sinking into the snow with every step he took.

He had gotten himself lost. He wasn't afraid to admit that. His step-father had only sent him out to collect a couple of twigs for some make-shift fire pit. Yet he couldn't even do that much; he was so useless sometimes. He couldn't help but feel like an embarrassment to his family; maybe if he didn't exist their lives would be so much better.

He clutched onto his close-fitted, red solid sweatshirt tightly. Seemingly falling into himself as his muscles began to vibrate in small movements in a desperate measure to produce heat and energy; both of which he was slowly running of.

He thought about turning back. However the idea seemed unwise; not only had his tracks been covered up by the snow that descended from the skies aboves at a somewhat rapid pace, but he was frightened at the prospect of ending up getting him lost even more. His best course of action was to get to the summit and hope to spot his family's campsite from there; at least he would be capable getting there without getting lost.

Once he neared the top he spotted what appeared to be some sort of dirt road. However something was off about said pathway. While the snow covered all the surrounding area in layer upon layer of white, the path was snow-free; what was even stranger was the fact that the path seemed as though it was well worn… suggesting that it had been used quite frequently.

But that didn't make any sense. His step-father was quite clear about the fact that no one had visited the area for a very long time… Yet here he was standing in front of a clearly well-used, although poorly maintained, dirt pathway.

Maybe he had been wrong? Although it seemed like a general consensus among the townsfolk, not just his step-father, that no one had been here in centuries. Hesitated for a moment; unsure of what his next course of action should be. He wanted to continued onwards; to ignore the dirt pathway and pretended that it never existed.

However there was a powerful tug in his chest and he felt a strong urge to investigate the path. It might lead to civilization after all and if it didn't he could always back track and make his way to the summit.

As he began to make his way towards the path, he silently wondered where all of this curiosity came from, he was always quite a cautious individual. He didn't enjoy branching out and leaving his comfort zone. Maybe that was why he hadn't made any new friends since he arrived in this foreign town a month ago.

He was too much of a wall-flower.

Unfortunately the path didn't lead to civilization but it had lead him to the entrance of a large cave. Now he was by no means an idiot; for all he knew some giant ass bear could be hibernating inside or a pack of wild wolves and he rathered not be on the menu. But despite these fears he still entered the cave; his legs seemingly having a mind of their own as they moved on their own accord.

Drip…

Drip…

Drip…

That was all he heard as he traversed the expansive cave system. Fear slowly welled up inside of him as he anticipated an attack; he could feel the adrenaline steadily being administered into his body in small droplets.

He heard the sound of something crashing to the ground. Pivoting around abruptly; his

Dark eyes searched the cave for any sign of life. Subconsciously he took several steps backwards. Maybe this wasn't a good idea… maybe he should have just continued to the summit and-

He would be ripped from his thoughts as he suddenly felt himself trip over something. "Ah..!" he exclaimed in shocked as he felt himself slowly descending towards the ground; but instead of an instant collision with the ground he would find him plunging rapidly downwards. He let out a shrill scream as he watched the world above him get increasingly distance.

And before he knew it; the world around him faded to black.

He didn't know how long he had been out for. Quite honestly he didn't even know how he was still breathing. " The hell; how am I still alive?" was the first thought that came to mind as his eyelids slowly opened. How was he still breathing? How was his body not a mangled mess with all it's content spread across the floor? When was he ever this lucky?

His hands would clench around something soft. Turning his head he would noticed that a patch of golden flowers; blinking in confusion he slowly rose into a sitting position to take in his location a bit more. It would seem that he had fallen in a patch of golden flowers. "Did these break my fall?" he wondered silently as he ran his hand gently through their petals.

Where was he? Had he fallen into a lower level of the cave system that he was in? If that was the case... why the hell was there a random patch of golden flowers here? A gasped would snap him out of his reverie and his eyes would widened at the sight of a young girl.

She had brown hair that barely reached her shoulders and was adorned in a striped sweater. She looked about thirteen or fourteen the most and she was looking at him with the same look of shock. " W-who are you?" She inquired timidly. The girl seemed dumbfounded by his presence and regarded him as though he was some sort of anomaly. Which made him wonder how long the other girl had been down here; it looked as though she hadn't seen another human in ages.

"Um… well i'm Kaylin." He answered, although he could see that the girl wasn't really satisfied with his answer? What? Did she expect him to be someone of note? Well… he was sorry to disappoint her, he was as average as it got. "And you?"

The girl seemed hesitant to answer him, which confused him immensely, but he decided not to comment on it. Finally, after a moment's pause, she spoke. "I'm Frisk... "

He smiled politely at her. "That's a pretty name." He stated as he slowly got to his feet. "So Frisk… do you... um… do you know where we are?" There was a flash of something in the brunette's eyes; but he couldn't tell what it was or what it meant. Frisk didn't respond to him for a moment seemingly debating something in her head and Kaylin began to shift uncomfortably in the spot where he stood.

"I-I have no idea" She looked away from him; avoiding his gaze. While he didn't want to doubt the girl in front of him; after all it wasn't good to make assumptions but he had the sneaking suspicions that Frisk was hiding something from him.

After a moment of awkward silence Frisk turned her gaze back towards him and smiled at him. " I think it be wise for us to move on… it might not be safe to stay here." She suggested as she motioned towards a pathway he hadn't noticed before.

He blinked and nodded in agreement. Seeing as there were no other alternatives and he was into the idea of sitting around and waiting for others to come rescue him; he decided that Frisk's suggestion was the best option.

Kaylin walked onto the path along with Frisk his eyes taking in the architecture of the area in admiration. It was as if he had fallen down into some sort of ancient ruins. "Wow this place is beautiful" he muttered Frisk and him past another towering pillar.

"Yeah, it sure is." Frisk agreed. However while Kaylin seemed awestricken by the sight Frisk looked almost saddened by it.

"So um… how old are you Frisk?" He inquired.

"I'm 14," The brunette answered. "You?" She spared a glance at him.

"I just turned 16 yesterday; my family had decided to take me out camping as a gift."Which was kind of a sucky gift considering nature hated him; but he still was grateful, some people didn't even get anything for their birthdays.

"Happy belated birthday." Frisk would supply with a smile. Smiling in return he would mutter a quick thank you before the two fell silent.

"So how did you end up down here?" Frisk was would suddenly break the silence that had fallen between the two.

"I… I got separated from the rest and ended up finding this dirt path that lead me to this cave." He explained as he shoved his hands into the pockets. "I hadn't been paying attention and I accidentally slipped and fell down that hole." Honestly he was still wondering how he was standing there with no injuries whatsoever.

"Really? Looks like we're both in the same boat then." She turned her head towards him; her eyes shimmering in the dull light of the ruins. " I hadn't been paying attention myself when I tripped; I thought for sure that I was dead…" She seemed to trail off there.

"So how'd you end up in the cave?" Frisk mood seemed to sour slightly at his question and the smile on her face turned into a scowl.

"I-i rather not talk about it."

He instantly felt bad for asking such a question. Given her reaction, it was obvious that her reasoning for visiting the cave was something she'd rather not remember. "Oh… sorry i didn't mean to-"

"It's ok, you were just being curious… let's just get out of here. Yeah?"

They would step into another area where they would encounter a smiling… flower?

"Hey there! I'm Flowey. Flowey the flower-" The Flower would suddenly stop mid-conversation as he took noticed of Kaylin. "W-what they're are two you?" He inquired. The shock clear in his tone.

"Did that flower just talk?" Kaylin's eyes were wide as he pointed a finger towards the plant. OK he was definitely dead… there was just no way that he was standing in front of a talking plant. Just no. His inquiring gaze turned to Frisk; the brunette, who had a frown on her face as she regarded Flowey, instantly had the same look of confusion on her face when she noticed that Kaylin was looking at her.

Flowey seemed to recover from his shock. The sickeningly cheerful look reappearing upon his face. "Ah it doesn't matter."

He would feel a tug on his sleeve and would turn his head to Frisk who would lean towards him and whisper. " I don't think we should trust him."

"Why?" Kaylin would ask. Sure his creeper sensors were going off; but it was a flower… what was the worst thing it could possible do to them?

"Just take my word for it ok?" Was Frisk's simple response. Kaylin sighed but nodded anyway and pulled away from Frisk to face the flower.

"You two are new to the underground, aren't ya?" Flower asked, still smiling widely. "Boy you must be confused, someone ought to teach you how things work around here." Frisk and Kaylin exchanged looks; from the way Frisk was looking at him he could tell that she wanted him to be prepared. He gulped and his hands twitched as he waited for the flower to continue.

"Which is something little old me will just have to do! Ready… well here we go…"

Suddenly two hearts appeared in front of the humans which floated above their chest. Frisk a bright red and Kaylin a Green colour.

"The hell just happened?" Kaylin questioned as he reached out to grab the heart. He was shocked when his hand was able to successfully wrap around the it and he brought it close to him; his brown eyes inspecting it closely.

"That's your soul silly!" Flowey giggled. "The very culmination of your begins! Your souls are going to start out weak down here but with LOVE it will grow much stronger." His smile became more menacing. "You want some lOVE don't cha?"

"Um…" Kaylin took a few steps back after noticing the shift in tone in Flower's voice. " For some reason I don't think you mean the same love that i'm thinking about." Suddenly Frisk was standing in between him and flower.

"Bingo." Was all she said as she glared at Flowey.

"Oh so you know what going on here?' Suddenly both Frisk and Kaylin would be surrounded by bullet-like pellets. "Well lesson number 2: Down here it's KILL OR BE KILLED!" The pelts suddenly came at them at full speed and Kaylin screamed out.

Frisk bent down and gripped onto Kaylin's arm prepared to dodge out of the way, when Flowey was suddenly blasted away by a fireball. The pelts instantly feel to the ground and Kaylin let out a sigh of relief.

"Looks like your arrival hasn't changed a lot." He heard Frisk muttered, but before he could question her, a giant humanoid goat woman appeared.

"What a foul creature picking on two defenseless individuals." She would shake her head in disappointment and turned her gaze towards Frisk and Kaylin. Frisk seemed to stiffen in the goat woman's presence; but Kaylin was too busy gawking at the monster to notice.

This day was just getting weirder and weirder.

Whelp there is the first Chapter! I know it isn't spectacular but at least it's a start right?

I made this Story mostly because I noticed the distinct lack of Sans x Male OC; so I decided to take matters into my own hand and try my hands at writing some Undertale fanfiction.

This story takes place after Frisk has done several resets. So Frisk is a little more jaded but still a kind hearted individual.

I want to know what route you guys would be interested in seeing me do? Genocide or True Pacifist?

I will also be updating this story on Archive of Our Own under the account Ultimate Alternate Universe.