Upside down

Chapter 0

Emptiness...is what you feel around you now, no sound, no direction and all you see is black. You try to remember what happened but when you do it, your head hurts. All you remember now is your brother's critical condition

.

.

.

'Oh right...I forgot about that'
You try to speak...but your voice makes no sound, just when you start to panic a light appears in front of you which is the first thing you see before closing your eyes again
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"...then I go.....ack to sleep"
"SANS......RUDE, THEY'RE GU........"
"Hm, seem lik........is awake"

Okay, waking up to these weird noises is giving you a headache. Trying to move your tired body, you find yourself leaning against something (probably a wall). Don't know how long you sat on the ground like this but you felt your neck a little sore, was about to rub it with your hand when a loud voice brought you back to reality
"HELLO THERE OTHER VERSION OF MY BROTHER! HOW DO YOU FEEL?"

Hearing a voice you couldn't be more familiar with, you looked up and saw two skeletons you couldn't be more familiar with: Papyrus and Underswap Sans. You glanced behind him and saw more versions of Sans and Papyrus.
Heck, you can even see Classic Sans standing behind Papyrus looking at him lazily but somewhat carefully

Seeing that you just looked at them but didn't answer, US!Sans called you back
"OTHER ME, ARE YOU OK? IF NO LET ME HELP YOU, I'M QUITE GOOD AT HEALING"

'The personality that likes to help others, that's definitely US! Sans. Wait, 'other me'?"

You look down at yourself, you're wearing a dark blue turtleneck top with a uh...you can say gray with blue, a pair of jeans that are a bit tight but is doesn't feel uncomfortable at all and you're wearing a dark blue shoes. But that's not what catches your attention. The gloves you are wearing are fingerless, but your hands are not human hands, but two skeleton hands!

You and your brother know about Undertale from 2 years ago and we both love it. Especially when learning more about Undertale's other AUs, the two decided to create their own AU together. And your current body is definitely Sans-your Sans
"Well, this is shit", you whisper. Damn your voice sound cool

Look up to see Papyrus and US! Sans is looking at you with concern, you can also feel other eyes like wariness, curiosity and even impatience

You touch your skull, don't want to keep people waiting, you say, "Umm, hello? Can someone explain to me what's going on?"

This time US!Sans once again spoke first
"OH! GLAD THAT YOU'RE OK, I KNOW YOU MAY BE CONFIDENT BUT UH..."
US!Sans finished speaking and hesitated, putting his hand on his chin like he was trying to find the right word
At this point, Sans decided to join the conversation with a simple sentence: "Multiverse theory?"

"THAT RIGHT! THANK YOU CLASSIC"

Your eye sockets are wide open
'Oh no shit sherlock. Is this a dream!?'

As if seeing what you're thinking UF!Sans scoffed: "This is reality and no shit it's multiverse theory"

You're really speechless this time, if you have skin, you'll definitely pinch it

It feels wrong
Should be...
You shouldn't be here
If you're here, then your brother

US!Sans looks back at you, he looks even more excited
"I KNOW EVERYTHING IS HARD TO UNDERSTAND RIGHT NOW BUT DON'T WORRY, WE WILL HELP YOU GET ACQUAINTED, INCLUDING YOUR BROTHER!"

"My...brother? He's here?!"

"YES, HE IS HERE! BUT LOOK LIKE HE HAS BEEN AWESOME"
Papyrus said in a worried voice, you look in his direction and you see your brother...no, it's his Papyrus. He's sitting against the wall, to his right is some strange machine

You take US!Sans' helping arm as you stand up, slowly walking towards to your 'brother'. When you get there, you stand there watching him from above. Your brother's Papyrus is inspired by US!Papyrus so he wears a black hoodie with orange trim from the shoulder extending to the sleeves, the cap is also orange, like the other Papyrus bags, his 'brother' also has a blue scarf that matches the color of your shirt. Looking down from above, you can see that inside the hoodie is a tight white turtleneck, completely enough to cover the neck

The bottom part is simple, a pair of jeans like his and orange shoes. Other people might not be able to see his neck thanks to the shirt but you know what it is. When creating characters, because both of you are not good at designed clothes, you both decided to choose simple costumes, complicated things will be shown on Sans and Papyrus's bodies

From the neck...or rather, the whole spine is made of metal with joints to be able to move naturally as usual. The inside of that metal spine is empty except for the neck, which contains a voice box for talking. That means without it, your 'brother' can't talk

For some reason, you feel guilty

You sighed, rubbing your bone head before looking down once more
'Don't know if this is his Papyrus or like me, trapped in this skeleton's body. Because if that's the case...how can I allow him to pass out while I'm awake!'

You have to wake this brat up to suffer in this cruel reality with you

Seeing you look at your brother for a while but say nothing, the other Sans and Papyrus are a bit worried and hesitate whether to encourage you that your brother will wakeup soon because they don't know what you are thinking.
Well, at least until they see you stooping down, grabbing your brother's hood and tossing it aside. Seeing the younger brother being thrown to the floor, they really didn't expect it

You may hear a few whispers like: "Ah shit not again"

"UGH! THE HECK IS THAT!?"

Hearing the groan of the person in front of you, the smile on your face grew even bigger and said, "Rise and shine you sleepy head"
This is a sentence you often say to your brother and in every morning, if he reacts the he will definitely be your brother

"BROTHER I SWEAR TO FUCKING GOD IF YOU WAKE ME UP LIKE THIS AGAIN THEN EVEN IF I DIE-"

Watching my brother get mad at me and then suddenly stop talking with a surprised expression. The two of you don't act close to each other like other brothers and sisters anyway so you don't feel guilty at all for waking him up like that.
'Looks like he realized something was wrong, good'

Seeing your brother looking at you without blinking, his eyes open as if he is seeing a ghost. You gently step aside so he can see the others. His expression is so...funny
"Ehem"
You purposely cleared your throat to get his attention

Seeing your brother turn to look at you, you laughed teasingly and said: "Congratulations, you're dead. Welcome to heaven"
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Here's a sketch I just did to visualize what one of our main character would look like which I put zero effort in this

The sword he is holding is one of his weapons, I might have to fixe it in the future as I realized I was missing a detail for the sword. I'll show you the entire sword when it's officially appear in the future chapter

I don't know how to draw Papyrus so I won't draw him, sorry:,))))))))))