Thank you for this request DJ_killer103! Hope you enjoy this!
Btw,
⚠️Warning⚠️ Trigger Warning (maybe)
Background Knowledge
Something new happened. . .
Your POV
Day 1
Something different happened today. I was in the middle of battling Sans when suddenly everything glitched out. I found myself in the save screen as I normally would after death. I assumed that I had just died, but when I went to go press the buttons nothing happened. Currently, I am sitting beside the RESET button playing with my knife. Nothing has happened since I got stuck here.
I think I will just sit here until something happens.
Day 3
After sitting alone for days, I realize how lonely I am. Is this how Sans felt after I killed all of his friends? A small pang of guilt has found its way into my heart. Later that day I get attacked by a familiar Gaster Blaster. I look in its direction and see Sans. Well, a glitched version of Sans. It seems this place changed him as well as it changed me. He glared at me for a long time before resuming his attacks. He got tired a lot faster than he used to. I didn't attack back. I just observed him.
After a while he stopped attacking and just sat down facing away from me. He hasn't moved since and have not done anything to engage him in conversation. Why should I?
Day 7
I haven't stood up in days. Sans and I have been in a silent contest. Whoever engages the other first loses. I refuse to converse with him. I'm sure he wouldn't want to talk to me anyways. Though I have to admit that I miss talking to someone. The guilt from earlier sinks back in and I begin to regret my actions.
The only reason I did it in the first place was because that "player" said it would be fun. I didn't find it very fun, but every time I would finish a genocide they would say "It gets better. Keep going." And so I did. I kept killing and resetting.
I was an idiot. Sans shouldn't have been subjected to such suffering.
Day 9
I tried talking to Sans today. It didn't go very well. As soon as I said his name he spoke over me. He claims that his name is Geno now. I call him this instead, but he doesn't respond. I'm getting desperate. All I want is to have a worth while conversation with someone. Anyone.
I continued talking to him even though I got no response. I told him how sorry I was, I told him about the player's influence, I even told him about my different experiences during my few Pacifist runs.
After a while I gave up on talking to him. The last thing I said to him was "I'm sorry".
Day 20
I'm going insane. A few days ago I started talking to myself after failing to talk to Geno. Lately, I have been getting responses. I ask basic questions and the responses I get are odd.
"What was my favorite color again?"
"You liked the color red, remember?"
"Did I have any siblings? I can't seem to remember."
"Dirty brother killer. . ."
"What did I usually act like? I feel different than I used to."

YOU ARE READING
Sans Aus x Reader Oneshots (Infrequent Updates)
FanfictionIf you can't tell what this is from the title idk what to tell you... I will do requests and they can be as detailed or as vague as you want. I will do OCs if you want. Maybe limes, but NO LEMONS. Loads of fluff Pronouns she and her unless requested...