You know what would be a really awful, angsty plot twist that would follow up with a lot of hilarious shenanigans???
If after Irene brought Gaster and Frisk back into the timeline, and tried to peacefully, willingly give Asgore her soul so no one would have to fight, Frisk just RESETS.
Because after Frisk is returned, they gain control of the SAVE file. Irene no longer has the ability. And they refuse to let Irene die. So they RESET to when they first fell down, and free the monsters True Pacifist style instead of Irene.
Gaster isn’t erased from existence anymore, so his presence is permanent, but people don’t really question it. They wonder if he’s always been there, but can’t recall if he hasn’t. Everyone just accepts him as part of the skeleton family, and Papyrus is happier than ever. Sans somewhat remembers, so he just lets it happen. Papyrus treats Gaster, just like before, as his dad.
Yet as a result. Irene never falls down. She doesn’t get stabbed by a human and chased to Mount Ebott either, because the monsters would have been freed by then. She doesn’t befriend Sans or Papyrus, and she doesn’t remember Gaster. She doesn’t remember anything, though she probably gets such strong deja vu when interacting/seeing the monsters.
She probably won’t even meet the Skele-fam until months later, when she’s working and they’re grocery shopping. Sans is obviously asleep in the cart and buried in all the groceries, while Papyrus is pushing it around and checking things off a list. Gaster is just there to supervise because well-meaning as he is Paps sometimes grabs the wrong things.
And then boom. They enter her line and she’s the cashier and Gaster knows her but she doesn’t know him, and Sans is like sort of aware because he recognizes her- he remembers that she isn’t a threat, is a friend- and Papyrus, chatting away after answering the usual questions of “did you find everything okay” and “hello, how are you today” probably mentions that he can’t find his favorite food anywhere.
Irene: “Oh really? What is it? Pasta? Actually, no, hold on. Let me guess. You… seem like an oatmeal and dinosaur egg kinda skeleton!”
Papyrus: “WOWIE!? YOU CAN TELL!???”
Irene: “Wait, I was right? Uh… cool! Egg-cellent, actually. Um. The… oatmeal should be in aisle five, I think. Yeah. Aisle five or six.”
Papyrus: “THANK YOU, HUMAN THAT I DEFINITELY DON’T THINK IS SUPER FAMILIAR FOR ANY PARTICULAR REASON! I SHALL GO GET THE OATMEAL NOW AND PRETEND I DID NOT HEAR THAT BAD PUN. SANS- GUARD THE CART!”
Runs off. Sans snorts, then lazily opens an eye. “sure thing bro.”
Que awkward waiting for Papyrus to get back. Ends up staring at Gaster for a bit. He notices.
Irene: “O-Oh, uh, sorry. I just- uh, I don’t know you, right? I mean, I’m pretty sure I don’t know you; I think I’d remember a skeleton as pretty as you- I MEAN I JUST think I’d remember meeting a skeleton!? I-I don’t think I’ve seen one before, well maybe. Do you come here often? Is this a store you shop at a lot? I’m sorry this is weird I’m gonna stop talking now.”
Slaps hand to face, cringing.
Gaster, speaking in Wingdings without signing, mostly just as a test: “We Have.”
Irene, understanding what he said instantly without realizing: “Wait, what? Really? When?”
Gaster: “Before.”
Irene: “…Hah?”
Papyrus finally returns, triumphant and excited: “THEY HAVE THE OATMEAL!!!! NOW WE CAN PAY THE NICE LADY!”
Irene awkwardly finishes checking them all out. Goes to hand Papyrus the receipt. Papyrus is about to put away when he pauses.
“FOR NO PARTICULAR REASON, I AM WRITING DOWN SEVERAL NUMBERS THAT MAY OR MAY NOT BELONG TO ME OR MY VERY KIND AND GOOD FATHER-“
“Papyrus, What Are You-“
“-WHO DEFINITELY MAY OR MAY NOT HAVE TALKED ABOUT A HUMAN THAT LOOKED LIKE YOU-“
“Give Me The Receipt, Papyrus-“
“-AND I FEEL LIKE YOU AND I COULD BE THE BESTEST OF FRIENDS. YOU FEEL LIKE YOU HAVE A VERY KIND AND FAMILIAR SOUL.”
Sans, snorting again as he shifts beneath all the groceries, watching the scene take place with amusement. Gaster, both flustered and irritated. “Papyrus!”
Papyrus shoves the receipt in a very startled Irene’s hands. “CALL US ANYTIME, HUMAN!! ESPECIALLY OUR DAD. ALSO ME. BECAUSE I AM A VERY COOL FRIEND TO ALL MY VERY COOL FRIENDS, AND I THINK YOU WILL BE A VERY COOL FRIEND, TOO.”
“O-Okay.” Irene nods. Awkward, and a bit embarrassed, grins. “I shall… do that. I guess. Apparently. Uh… have a nice day.”
Gaster is just sort of groaning into one of his hands, unable to believe Papyrus just did that, while Papyrus laughs.
Gaster: “For The Last Time, I’m Not Your Father. I Just Created You.”
Papyrus: “THAT MAKES YOU OUR DAD! NYEH HEH HEH, YOU EVEN HAVE A DAD MUG!”
Gaster: “You Scratched Out “Scientist” And Wrote “Dad” In It’s Place. That Does Not Make It A Dad Mug.”
Papyrus: “SOUNDS TO ME LIKE YOU’RE IN DAD-NIAL! NYEH HEH- eugh. SANS, I’VE BEEN HANGING AROUND YOU TOO MUCH.”
Sans winks and finger guns him. “sorry not sorry, bro. also, you should listen to paps, daddy-o.”
Gaster: “Stop.”
Sans: “don’t think I didn’t see you using the dad mug last week. if you hated it so much you could have just painted it back over.”
Gaster: “We Are Going To The Car And This Conversation Did Not Happen.”
Papyrus, happily pushing the cart and following after him: “IT TOTALLY DID HAPPEN BECAUSE YOU’RE OUR DAD AND YOU LOVE US, AND THAT HUMAN WAS TOTALLY GIVING YOU THE LOOK! SHE’LL ONE HUNDRED PERCENT CALL TO ASK YOU ON A DATE! THEN SANS AND I WILL HAVE A DAD AND A MOM!”
Gaster: “Stop.”
Irene, meanwhile, questioning what the hell just happened and why she was actually tempted to call the numbers the loud skeleton gave her:
Chara is an animatronic built by William Afton to help him lure children easier, they are a wolf in sheep’s clothing. Chara has an illusion disk placed on the horn on their left side of the head, this is where the party hat would be place. They serve as an illusion to assure the kids that it’s all safe to go into the back room and to encourage them that it will be fun! In reality Chara is far from an actual child, they are a murder weapon in a mass genocide of innocent souls.
Side Note: In this universe the children killed possess human souls with their specific human trait of Perseverance, Bravery, Justice, Patience, Kindness, Integrity and Determination.
Chara possesses a knife that is kept hidden inside their right “sleeve” which they take out only when they are in the back room with Afton. When in the back room they show their true form of a faded doll looking animatronic, freaks out the kiddies a bit more just for kicks. Chara uses their scary face when in the back room as well, again to freak out the kids more than what they already are. They also use their speaker on their chest to make disturbing noises or used to mimic the voices of children’s parents or guardian to lure into the back room as well, this speaker is also used for their voice.
Frisk is an animatronic built by Henry to prevent Chara and Aftons actions, their design is based off Chara’s model but shorter and the illusion disk party hat being on their right side. Frisk will stop at nothing to keep both monster and human children safe from the murderous hands of these killers. Frisk also helps the night guard during the night against the animatronics as well as Chara. They are the true pacifist, well they are supposed to be…
There is a downfall to Frisks design, due to the fact that they are based off Chara they are easily influenced by them. This means that if Frisk is not watched and taken care of they might turn on the night guard and the children with Chara’s ideals. It is the night guards job to keep Frisk on the right path and to not let them be influenced by the demon child.
Frisks appearance is very close to Chara, but their scary face is a bit different, Frisk doesn’t possesses any animatronic eyeballs and instead has a dark void of black eye sockets. This is due to the fact Henry ran out of parts to build them, it isn’t much of importance since they have sensors and hearing to guide them.
Side Note: Both Chara and Frisk possess a human soul of determination to be built, this is another reason Frisk can be easily influenced by Chara.
Side Side Note: If either Frisk or Chara’s party hats are taken off the illusion is broken and both of their true forms are revealed, a design flaw in a sense but it gives Frisk and advantage to stop Chara during the day since they would need to go to the back room to be fixed and won’t be able to come till the next day. Chara can also do this to Frisk though so it’s a high stakes game of capture the flag.
Sans and Papyrus can’t be left out! They were recently hired to take care of new recruits and have some night shifts, they both accidentally destroyed the phone guys cassette tapes and needs to instruct the new security guard live via telephone. They give you commentary on your shift and information about the animatronics you need, though this information isn’t correct all the time so you need to be careful about that.
Papyrus is more upbeat and energetic at his job than sans is, but they both are entertaining none the less. Frisk really enjoys their company while being in the office with you, though san’s puns irritate you a bit after hours of them nonstop.
Side Note: Gaster exists in this universe as well but he is a shadow version of himself, similar to shadow Freddy and Bonnie. Gaster helps sans and Papyrus by giving them advice to give to you, Papyrus isn’t aware of this but sans is a little more aware but still confused about it. Gaster also visits the night guard and Frisk at times but only Frisk can sense him.
This was made for an UT x Fnaf crossover contest on Undertale amino
SANS: The tab is because he cares. Although I’m too lazy most times to even remember I have to pay it (I’m a terrible son sometimes…..). Anyway, I’m goin’ home to go talk with my other dad to keep working on our plans for a door out of the void. Progress is….slow on that.
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((Mod Shade here! For anyone new to this blog, Sans has a big family at this point! He’s got his adopted family of Grillby, Celia and Fuku, his adopted aunt Raina the Riverperson, as well as his biological brother Papyrus and his biological dad Gaster who is still currently in the void.))
