Lost Without You (Gaster!Sans X Reader)

Prologue

You ran.

As fast and far as your legs would carry you, you ran for your life.

Both your legs ached with a throbbing pain and your chest felt as if it'd burst if you pushed yourself any further.

Maybe that's what you wanted.

If you could just let them end you, if you just gave up, if you just surrendered like the good little girl you once were; it'd all be over.

You wouldn't have to deal with the abuse, the pain, the heartache. You could finally escape to a place where you were safe.

A place of freedom.

But, your story wouldn't make sense if you began it here. This war, your suffering, your fight; that all began 4 years ago.

( Four Years Ago)

You were sitting in your school's library; the hard carpet, beige walls, and tall bookshelves were usually enough to drive students away, but you preferred the quietness the room granted over the yelling of the cafeteria any day. 

Besides, while the other kids were slaking off, you had already completed the research portion of your latest project given to you by your English teacher; researching a mountain that wasn't too far off from your home town.  

While mountains weren't exactly in your interest, reading was your passion; it was all you did at school, all that you cared about. Classmates would tease and bully you about it, but to be frank, you could care less about their harsh words.

You figured the more knowledge you had, the safer you'd be when you grew up; the world was only getting more dangerous by the day. Your grades were always the top of the class and you'd always get the best scores.

The people around you found that annoying, claiming that you thought you were too good for anybody else. When in reality, you were just scared of interaction and rejection.

Your childhood was rough. And when you grew up, you were just kind of... twisted, in the eyes of others.

One day, after classes had finished and you were gathering your things; you were pulled aside by one of the most popular girls in school along with her annoying groupies.

They called you names and threatened you. But you were used to that by now. It didn't really phase you.

When they all saw your lack of reaction, they got enraged and began calling you a "glitch".

After that, they beat you senselessly. Your left arm was shattered. Your cheek was sliced by a pocket knife along with your legs and stomach. Your whole body was bruised with ugly purple and blue marks.

You were a bloody mess.

The girls were never caught and you knew telling anybody would be a death sentence.

But after your beating, the name "Glitch", just kinda stuck. Because "you didn't fit in anywhere", because "you only created trouble", because "everyone wanted you gone".

It was ruthless.

But you kept the same facade you'd always had, pretending you were fine. Pretending that it would be okay. Pretending that you had a purpose. Pretending that your life meant something, anything!

In the end, you were just a really good liar.

Just when you were about to give up on yourself and the vicious world you lived in, that's when it began.

New reports spread all over the world about a catastrophe that would bring humanity to its knees.

Since you had done research over this very topic, you knew exactly what was happening.

The monsters that mankind had sealed underground many of decades ago had broken free from the base of Mt. Ebott- the mountain you'd been researching.

The mountain that was only several miles from your house.

Blood-curdling screams filled the streets and could be heard from other nearby houses.

Then a sudden realization hit you like a ton of bricks.

Your four month old baby brother was downstairs in his room. Alone.

Your parents were away, so there wasn't much you could do to save them. But your brother, your precious baby brother was defenseless and alone.

You throw open your bedroom door and practically tumble down the stairs.

The front door to your house is open.

You hear him screech from his bedroom.

Tears are already falling to your cheeks, fearing the worst.

You open his bedroom door and gasp at the sight before you.

Ivan. Your one and only baby brother, lies in a bloody puddle before you; his fragile body no longer moving. The attacker stands over your brother's dead body.

The tears fall uncontrollably from your eyes and you cover your mouth in horror.

"You... You killed him!" You shriek, looking up to face your attacker.

They don't allow you to get a clear look at their appearance. Instead, something hard slams itself against your head, causing you to fall flat to the ground.

The only things you could remember was a flash of black and smell of cigarettes.