Shattered Memories (Nightmare x reader)

Y/n = Your name
P/n = Pet name

Warning: Depression, and self-harm.
__________________________________________________

—Y/n's pov—

A few days had passed from the event that happened between me and nightmare. They started to go back to their usual 'destroying Au's' thing. So, I'm usually left alone in the house with p/n. I wonder why's the point of destroying an Au but, this is their own kind of nature I guess. I sighed as I looked at book I was reading, I flipped the next page- I hissed in pain from the sharp edge of a paper. A paper cut..

"Are you really that weak to have a simple cut on a paper, Experiment 0.3? Pathetic!" A loud and painful slap.

I gasped. I felt something wet and salty from my face, I was crying? I wiped it away and looked at the paper cut.

What.. was that..? I shook it off and closed the book. I stand up, went to the bathroom to clean the cut. I applied a small bit of alcohol —wincing from the pain— and then putting bandage on it. Walking back to my room, I saw p/n looking at me worried.

"Is there something wrong, master? You looked terrified for a moment." I sighed and let out a fake smile.

"I'm fine. I just had some.. thought. I'll be right back p/n." I said while teleporting to undertale. I was on the mountain cliff of Mount Ebott, I sat there and watched the sunset quietly. I looked down.

'What.. was that? A.. a memory?.. wh-who was that?' That peculiar memory made my body shiver. Was that monster or person referring to me..? Experiment 0.3..?' I looked at my shaky hands. "What.. am I..?" I muttered.

Just when I thought that I'd figured out who I am, an odd memory suddenly pops out. What memory was that? When was that event?

"Yo kiddo, you seem fazed about somethin'." I jumped from the voice and looked from my back, it was classic sans.

"S-sans— you scared the living daylights out of me." I was feeling out of breathe for some reason.

"Oh, You know my name already? I don't seem to recognize you though- but anyways, what're you doin' here on the mountain? Ya don't look like you belong in this Au."

"I don't really belong in this Au at all and, I was just.. taking a breather."

"This place is relaxing so, can't Blame ya for coming here though, which Au are you from?"

"I-I don't really know which Au I am but, I'm currently living with Nightmare and his team."

"Oh? So you're their prisoner then?"

"What- no you've misunderstood it, I'm not a prisoner. I live with them- as in staying with them." I explained my situation with nightmare and the others clearly.

"That's surprising. I never thought that those heartless versions of me would let a girl like you stay in their place."

"I don't know- they don't look that heartless to me.." I mutter the words quietly.

"Hm?"

"N-nothing."

"Hm.. If ya say so kid." He says sitting beside me.

"So, how was it?"

"Hm?"

"How was is to live with nightmare and his gang?" He asked as he looks at me.

"Well, it felt normal actually. Just like Uhm.. living in a normal house with friends."

"Really? I didn't expect that kind of scenario when it comes to nightmare but, I guess that's from others perspective."