Fairytale Complex - [Sans x Reader]

Prologue | Once Upon a Time

Finished with a hectic work day, you throw yourself on the couch and beg for it not to give in when you hear it creak. Just as the rest of your home, it's old, worn, and needs replacing. You let out a sigh and bask under what little calm you can find between the worries of a dead-end job and your child recently going missing. 

Many accused the disappearance on your lack of care and overall irresponsibility as their parent, while others blamed it on the myth of monsters existing near the place you suspected they last went to. The first of these assumptions you accepted and blamed yourself constantly for, yet the second of the two was near impossible to even be an option to begin with. Monsters were far away from your village; they were told to be sealed inside the Underground close to Mt. Ebott, and nobody had heard of them in centuries. It was highly unlikely for them to exist there and much less on the Surface, yet there were still some who believed in that myth nonetheless.

Alone in your home, you can only stare at the blank wall before you and think back on the last day you saw Frisk. 

...

"I'm home!" you hear them call, followed by their footsteps thumping against the floorboards.

They make it to the kitchen and throw themselves at you; their arms wrap around your neck and pull you into a hug. Smiling, you return the embrace, pull back to look down, and meet with their eyes. "Did you say goodbye to Auntie Brenda before leaving?" you ask, tucking a stray lock of hair behind their ear. Their bob and bangs had grown longer and many neighbours said it made them look like a girl, but Frisk never minded over those comments and always insisted on keeping their hair that way.

"Yup!" they reply, taking a seat next to yours. "We're… We're gonna spend the whole weekend together, right?" 

"Of course we are, honey." You chuckle upon seeing the worry in their eyes, these holding hope over a positive response on your part. "But first, we've got to study up on History," you add, "Remember you've got a test the day after tomorrow." You pinch their cheek and kiss it better, making them grin and burst into giggles. 

Then, you stand up and head to the living room, where you stop by the bookshelf already covered in a thin layer of dust despite its frequent use. Your eyes scan for the book you'd been recently reading with them, only to find it hidden at a corner, most likely an idea on their part in hopes of delaying their studies for a while. "We'll go over the last chapter. And after that, we can plan what we'll do for the weekend." You turn to them and smile, bumping the book against the top of their head. "But only if you don't try to hide your books away anymore. I know you like school and pay attention all the time, but that still doesn't excuse you from studying up at home."

You walk to the couch, sit down, and see their smile fade away when you open the book to one of its later chapters. It was far away from the one you were currently on, yet based on the look on their face, they seem to know what it's about, an assumption that grows stronger when you remember how one-sided the book in your hands is. Frisk was never fond of the stories it told, yet they never had the courage to go against its written words, either. Now, however, you have a hunch over them about to confront that when you see them frown and later open their mouth to speak up.

"Why do you believe what this book says? It… It says mean things about monsters! Haven't you ever been curious to know what they're all really like?"

You look down at the open book and give some thought to their words. Its borders are worn out and the pages are turning a soft shade of yellow, most likely due to the centuries that'd gone by since it was first published. 'The War Between Us' was its title, yet even though it said 'us', the author was biased at times; in more ways than one. It seemed that the more you analyzed it, the more you regretted having believed these stories when you were younger and having thrashed the possibility of beings like them ever existing. The question you've been given adds to your regret, so you pause and take a quick moment to reconsider.