UnderSwap Sans X reader

Undertale Sans (Another Nightmare, oofer gang)

(Oh. Judging by the title, it's gonna be an oof of a chapter. Yeet)

Y/N POV

I sat in silence thinking about how long I would be here. It seems to have been almost millions of years.. or so I think. Maybe a minute, an hour.. a day? I've lost count of time, which is not a good sign at all.
There was nothing and no color. Just a plain white, blank sheet of nothing; this place.
I sighed, closing my eyes and furrowing my brows.

I looked down at my clothing, which seemed to be the only source of color there could ever be in this place. I blinked and suddenly the color of my clothes had faded to a dark grey. I jumped up, extremely startled and rubbed my eyes. I looked back at my clothes, they seemed to beam with the same color again. I sighed in relief. That was awfully weird.

I looked down.

"Heya!" I said to myself quietly.

"Hey.." I responded, this time in a whisper.

"Knock knock!" I said aloud.

"Who's there?~" I giggled to myself. Slowly feeling my sanity crumble to bits.

"Moo!.." I couldn't stop myself.

"Moo, who?" I snickered.

"What are you, a cow or an owl?!" I yelled to myself, smiling.

I began to holler out in laughter. As if that were the funniest joke I have ever heard in a while. Which it was. I couldn't control myself, I need something to distract myself from the longing emptiness. Then.. it hit me.

I—

..

I'm slowly going insane.

I hyperventilated finally letting that sink in. I didn't want to go insane, I don't want to be known as a crazy person. I didn't want Blue to see me like this..

"I NEED TO GET OUT OF HERE!" I yelled.

I got up and yelled for help.

"U-UNDYNE!"
.
"ASGORE!"
.
"PAP!"
.
.
"S..SANS!" I cried out.
It had echoed through the place, which I didn't think could happen.

I waited, for anything. My voice dying down.

"BuT noBoDy cAmE.." Error said.

"Whe—..When can I get out of here..?" My voice cracked as my throat stung. My hope also dying down by the seconds.

"DoN't KnOw, MaYbE nEvEr.." He chuckled.

I could feel my blood boil with absolute rage as tears began to well up in my eyes. Causing my vision to blur. I let anger control.
I swiped down expecting.."something" to happen.
Which something did. I had no idea what I was doing but I just let it happen. It felt as if I couldn't even control myself.

'I'm going to kill him. I'm going to kill him'

Not even my own thoughts.
A red shine glared and pulled out of thin air was a sharp knife. I gripped onto it, knowing exactly what I was doing. My eyes widened, trying to stop myself. I couldn't. I physically couldn't control my own actions.
I then charged at him and swung the knife.

-29HP

0/0 (Error's HP)

I felt strings attach to my soul once again. Each string feeling like I'm getting stabbed with full knives.
I let out a cry in pain and fell to my knees, panting. Breathing carefully, but no use 'cause each sudden movement felt like hell.
He looked down at me, with a disgusted look. A look that I was all too familiar with and absolutely loathed. He turned away from me and opened another one of those portals. He stepped in and on whatever was on the other side. He then closed it behind him.