Authors note: So if you don't already know how most of (___ x reader)'s work, here is some help for how this one works.
( the change to Dreams/memories ) btw, speech, thoughts, quotes, inserts, and what is going on, works exactly the same in dreams, just in italics to show that it's in a dream.
(POVs) btw if a POV is not shown it means there is not a singular perspective.
[thoughts]
"Speech"
'Quotes' 
~time skips~
What is going on
Name of person saying or thinking what comes after this symbol :
^insert^
Y/n=your name
Ok now before you start reading, I need you to have READ THE DESCRIPTION, I cannot stress enough how important it is for you to read that, because if you don't then you might get completely lost as to what is going on and why, and we wouldn't want that to happen.

So, for those who HAVE READ the description, please continue on to the story, And thank for reading!  ^w^

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Y/n: [ I can't sleep ]
Frustrated, you turn on your tablet and google searched what it feels like to die.
You didn't find anything helpful.
You tried google searching the best way to die.
But your WiFi connection wasn't working.
Y/n: "'Great'!This is just 'perfect'!"
Y/n: " I can't sleep, I can't do research, and I have nothing to do except sit here and hope death just comes knocking at my door! Cuz that's probably the only way I'll find any solid information on anything that has to do with it!"
Little did you know, death was standing right next to you.
Reaper sans: [ She wants death, yet she didn't die like I thought she would. I can't reap her till she dies, though I know how to give her the perfect death. It's funny isn't it? She won't let herself die because she is determined to find the perfect death, and I can't give it to her till she dies, oh the IRONY!]
Death's smile, plastered on his face grows wider at this thought, as he chuckles to himself. You can't see or hear him, but you can still feel his chilling presence. However you figure it is just a cold night, so you cuddle up in a blanket on the floor by the heater hoping to get warmer. After awhile you fall asleep in the comfort of the blanket. Death, seeing that your asleep, begins to leave but...he pauses, looking down at you, he wonders what your dreaming of, questions had been slowly building in his mind, he wanted answers, no, he needed answers.
Reaper sans: [ I know it's non of my business, but...then again...since when have I ever been one for privacy]
Reaper sans: "fuck my dammed curiosity!"
He decided to find his answers
He travels into your dream...

( Y/n's Dream)

You are in an apocalyptic setting like always. Though this time something feels different and off about it. You decide to try and ignore it, and focus on surviving your dream. It's the zombie apocalypse like usual, your family is either dead beyond coming back to life or turned, the world is dead, and your running for your life from the walking dead. You find a car, you Hotwire the car, you drive to the docks, you get onto the cargo ship to find more zombies, you escape them by climbing the cargo boxes, they eventually  find a way up, your cornered, there is only one way out, the only way that ever works, you dive into the water...but something is wrong, you were supposed to surface, but you were being dragged further down, eventually you reach what you assume is the bottom of the ocean, but then again it's pitch black, and you can't really see anything. You hear a voice, the voice has questions, you are willing to try to answer.
Reaper sans: "why do you obsess over death?"
Y/n: "it's my point in life."
Reaper sans: "when you die, will you be afraid of death?"
Y/n: "why would I have need to fear it?"
Reaper sans: "it's the end of your life."
Y/n: "yes, so what? My Life is but a blip on the radar in the mass span of time, my death will be eternal."
Reaper sans: "you don't fear eternity?"
Y/n: "No. Do you?"
Reaper sans: ...
Reaper sans: "what if you were to meet him."
Y/n: "who?"
Reaper sans: "death."
Y/n: "how do you know for sure, death is a 'him'?"
Reaper sans: ..."just answer the question."
Y/n: "now I don't know if I want to answer the question, it's quite personal, and I still don't know who you are, so why should I tell you?"
Reaper sans: ..."welp, then guess I have no reason to be here anymore."
Y/n: "wait, what do you mean? Why not?"
Reaper sans: "you won't answer my question, so there's no point in staying here any more."
Y/n became anxious, and frantically tried to think of a reason for him to stay.
Y/n: "Can I at least know your name? Before you leave."
As he was about to leave, Death paused once more.
Reaper sans: "and what will I gain by telling you my name?"
Y/n: "my trust, if what you tell me is the truth."
Reaper sans: "and how does that help me?"
Y/n: "the more I trust you, the more likely I'll tell you the answer to that personal question of yours, when we meet again."
Reaper sans: "and what makes you think we will meet again?"
Y/n: "I assume your curious about me."
Reaper sans: "it's not polite to assume you know, and besides, everyone knows curiosity killed the the cat."
Y/n: "but satisfaction brought it back."
Reaper sans: "true."
Reaper sans: ...[ I can't tell her I'm death or the reaper, but...I can tell her my other name, the one people forgot was a name of death]
Reaper sans: "Fine."
Y/n smiled from her 'small' success.
Reaper sans: "my name, is Sans."
And with saying that death left, leaving y/n alone in the pitch black state of her dream. She finally surfaced, and woke up.