Undertale X Reader

An Alternate Us?

You and Gaster walked down the street "Well here is our lovely town. It's small but it's where most monsters come. The others are building a city as a new place for the Monsters to live. They could really use someone who is skilled in energy if you were interested?" Gaster nodded "Yes. I am now you bring it up" You smiled and she smiled back "Sign-ups are in the gathering building. Come back soon for tea!" Gaster walked over to the road and you headed home.

You headed up to your room when you heard banging from the other side of the closet "...Huh?" You moved into your lab to have a look "What's...going on?" The portal was active but it seemed to be slowly sucking stuff in "Must be unstable. I should pull it apart" Suddenly *WHOMP!* A big gust of wind blew you against the wall but you used the green soul to save yourself "What on earth!?" You heard everyone run upstairs to see you "Get back-" Before you could escape the portal sucked you back into it! You reached out for Toriel but you slipped out of grasp and fell into a portal "WOAAAHHHH AHHHHHHH!"

You fell into the snow...You slowly pushed your body up "What...the?" You looked around. It looked like snowdin but it was different. Grillby's was purple and had the words "Muffet's"...There was no Nice cream girl only Burger Panties by a stand. You walked around when you bumped into Papyrus with an Orange hoodie "Papyrus?" She looked at you. She had a cigarette in her mouth "Eh? How do ya know my name kiddo?" You shook your head "Hold on...If the portal could pull me to different universes then it could take me to a copy universe to...It's a possibility..." You mumbled "Hey Papyrus. I'll explain everything at Grillbys!" She shrugged "Burgers ain't my thing" You nodded "Right, Muffet's! That's what I meant..."

You and Papyrus sat down in Muffet's and you explained: "So back in my "Universe" I made a portal that I used to try to reach someone out of normal reaches...With me doing so it opened up a portal to other worlds. In this case...It's a separate universe of the world I live in that is a swapped version of my world." Papyrus chuckled "Heh...Sure kiddo...It sounds believable but I'll need proof-" "Sans, Human hunting fanatic. Wants to join the royal guard, Your brother, Piece of armour, never taken it off since you made it for him" Papyrus was speechless "...Well then...I guess yours must be the original from how everything swapped?" You nodded and Papyrus sighed "Welp. Let's get you home." You stood up "Hold on-...We're still in the underground" Papyrus stopped before walking out "...In your universe...You opened the barrier?" You nodded and Papyrus was silent for a moment before chuckling "Man...Lucky you..." You suddenly got an idea "Papyrus. You can "Shortcut" Right?" Papyrus nodded "Take me to the barrier"

You and Papyrus ended up at the barrier after walking out the door "...I know what I must do. But I need you to gather everyone in the underground here" Papyrus held your shoulder "It's noble and all with you sacrificing your soul to open the barrier but-" You summoned the 6 human souls "Do it Papyrus...Gather Sans, Alphys and Undyne" Papyrus chuckled "Wow kiddo...Thanks for this" She kissed your cheek and teleported off. You began to use their power "Ready guys? I'm gonna free everyone...If 1 universe deserves it every universe does!" 

Everyone in the underground including Queen Toriel gathered "It's a human. What's he doing?" You turned into a God "Everyone...Once I open this barrier I will disappear...But I will be around to welcome you to the surface..." Alphys stood up "But why for us!?" You smiled at them "...If I can...Why not?" You broke the barrier...The surface...It never gets old looking at it for the first time...A long sigh escaped your mouth as you turned back to normal.

After you thanked everyone for coming and helped them with their packing you sighed "And no Chara to ruin it for me this time" Sans and Papyrus walked up behind you. You turned "Human! My brother and I came to say thank you for your surface...Not all humans are bad right?" You nodded "Yeah..." Using the power of the souls you made it look like you were fading off but you were actually just teleporting "Oop...My times up...Stay safe guys" Papyrus nodded and Sans waved goodbye. Once you were safe you opened up a new Portal "Gonna have to travel around until I can get to my universe again...I'd better open some barriers on my way"

You entered a glum-looking world...You saw fighting going on in the streets and Sans and Papyrus were arguing "SANS YOU LAZY ASS! For fuck sake, you lounge about you worthless sack of trash!-" Papyrus saw you "AGH! A HUMAN! SANS STOP BEING LAZY DO SOMETHING!" Sans walked up "Jesus...Hey kid. Sorry about this" Sans punched you across the face "Oof!-...Someone's not getting an open barrier I can tell you that much "hows at boss?" Papyrus stomped on your head and began to beat you with a bone "Ok...I'm done" You blasted Papyrus off you and stood up "Look I wanted to try free this versions underground but I'm not about to go around and help everyone yet again...I think I'm gonna nickname this place...Underfell. To show how far you've fallen" You disappeared as quick as possible. Being around Edgy mc edge town was like the feeling of getting cut.

Next up you entered a void of white...Plain old white. Suddenly a brush of colour passed you and the world was getting coloured by...Sans? "Hey!" Sans saw you and floated down "Hey..." She looked at you and blushed a lot "H-HEY! IT'S YOU!" You scratched your head as she quickly showed you a picture of your universe...It seemed like the picture was moving "...This...Is my universe?" She nodded "RIGHT! A-ah...Right...Ahem. Ink Sans here! Watcher of the timelines...Just call me Ink" You shook her hand and she blushed more "O-oh jeez. I'm a huge fan of your work. The way you fought off Chara! The way you made your way through the underground! A-all of it! The one problem is that all the people in the underground are girls...I just wish they were all guys so It could just be me" You blushed a bit "Well...You're the nicest Sans I met today. The 2nd is a nice blueberry Sans" She nodded and looked over at the Underswap universe "Right! You were just there! You opened the barrier! Everyone seems to be getting along there...So would you like to maybe stick around a bit?" You shook your head "Sorry...I gotta keep moving to try to get back to my timeline" She frowned "Well...2 problems..." You looked at her confused "1. You'd have to leave me and I barely got a chance to spend time with you, And 2...You'd have to pass through Errortale...And Error Sans is the destroyer of Timelines...He's been coming after yours for days but I've held him off...Recently he's made a deal with Cross sans...And I'd be double teamed to dead if I went alone...I need your help"

You chuckled "Alright then...I'll go with. If it means saving other AU's...I'll bite" 

Next time on dragon ball- Hey! No! Go! Not the right now buddy!

Phew...anyway! Good luck on saving the AU's. And if you wanted to visit any other AU's nows the time to mention them. Don't worry You'll still be able to visit AU's but this will be the only time to visit them with Ink sans...So mention some