Quantumtale After Life

Undertale (Video Game)
F/F
F/M
M/M
G
Quantumtale After Life
Summary
After a wrong RESET Frisk and Flowey got sent back in time when all her friends were around her age. The souls have been scattered around the Underground and they keep messing with time. After this RESET Sans is now able to control time. Frisk has managed to restore her world from before the RESET after she gathered the SOULS, a new Frisk and Flowey being born. But she and him never left this world. She freed the monsters in this world. She's living alongside her 'new' friends down in the Underground, officially becoming TimeKid!Frisk and we are taking a look into the lives of our Quantumtale friends. (Yes, humans sometimes come to the Underground and monsters go to the Surface).
Note
Sooo~ We'll starte nicely, we're going to take that beautiful one-shot 'Royal Rivalry' by perfectshadow06 (also the creator of this beautiful AU) and i will make it Frisk and Sans.
All Chapters Forward

A wonderful date

"Stop being so impatient ok? Your soul trait literally says you're the opposite." Sans groaned. 

"if we want to catch their freaking date we need to hurry! why did they need to have afternoon classes..." Frisk rolled her eyes. Papyrus laughed. 

"I AM SURE THERE IS NO PROBLEM." Papyrus said, patting his brother's back. The three were here because they decided they will be spying on their parents/guardian on their date. The twins were supposed to come to their house anyways. Kids exited cheerfully the school, followed by a teacher and multiple children. The three still waited. Kids were side eye-ing them. Let's be honest: Seeing a human that looked like Frisk with two skeletons wasn't a normal sight for kids. Not to mention some of her scars created lighter spots on her face now. She almost looked like Louis. But he had it way worse and it was a biological problem. Adults were gathering to pick up kids as well. However Frisk spotted a familiar face in the crowd. 

"Shit- It's the girl from the ice-cream place with a guy that looks older." Frisk whispered. Sans looked off to the side and scoffed. 

"bitch..." Papyrus scoffed as well. 

"FIRST. LAMGUAGE. SECOND. I CAN AGREE." the three finally spotted the twins coming. As they spotted them, Annie and Oliver ran to the. Frisk opened her arms and pulled them both in a hug. 

"FRISKY!" A girl came from behind them and pushed past them, hitting Annie in the shoulder, as she went to the girl from the ice-cream shop. Frisk frowned. 

"hey! That's my sister!" Oliver said. It was clear he took the role of being the older twin seriously. The boy that came with the entitled brat of a girl and her sister stepped forward. 

"Shut it kid." The parents looked nervous. The teacher came closer to try to warn them about something. Sans put his hand up at the teacher. 

"do not worry about us, miss." Frisk looked the boy up and down. 

"So you're their older brother? What example do you set?" The boy smirked. 

"A good one and so do you~ Damn mommy look at your body~" The parents looked away. One mom wanted to step in. Frisk looked at the kids and knelt down. 

"What do you say we should do, huh kids? The big kids got this~" The twins smirked. 

"Papy! Pick one or two?" The twins said. Papyrus hummed. 

"2." Papyrus said, cheerfully. 

"Mess him up." Annie said throwing her hands up. Oliver laughed and cheered. The girl from the ice-cream shop gasped. 

"T-Tommy..." She tried to warn him but he was laughing at Frisk. 

"What can you do?" Frisk looked at the parents. Sans and Papyrus stepped forward. Frisk cracked her knuckles. Sans and Papyrus smirked as their eye-lights flared: one's blue and the other's orange. 

"Man you're a pest...no worries...We can deal with you. 5 seconds to apologize. Now." Frisk put her fingers up. 

"1." The guy flipped the bird.

"Hey that's not nice!" Annie said.

"Shut it you mistake of a child! Your parent is dating a filthy skeleton!" Frisk's eyes widened. She turned around nodding. Sans summoned a blaster and Papyrus was spinning a set of bones. 

"oh buddy...you. messed. up. something wrong with our dad?" Sans said as the guy backed away in horror. Papyrus chuckled. Frisk turned around with red eyes as the kids were hugging her legs. 

"Wanna repeat that, bastard?" Frisk said with a dark look. The boy stepped back even more, almost tripping. The parents and teacher looked up. Cautiously and scared, but they did look up. 

"I-I..." Frisk smirked. 

"Sorry...Time's up~" She jumped up and brought her foot down over his back. As he was bent down, she hit him in the face with her knee and swept her foot in his ankles throwing his balance off. Sans grabbed him with his blue magic. The guy kicked Frisk. The two twins gasped. 

"FRISK!" they said. Sans sockets went blank as Papyrus almost dropped his bone. Frisk blinked in surprise and wiped her mouth with her thumb. 

"Nice kick..." She said before she winded back her arm and threw the punch which left him almost knocked out. She spat on the ground and turned toward the kids. 

"Put him down Sans." She said, firmly. He shrugged and let him go. He felt with a thump and an 'oof'. The kids jumped in her arms. She smiled. 

"Glad to see you're ok. Sans, carry him to a bench." Frisk said. Sans rolled his eye-lights and put him on the bench next to the parking lot. Papyrus put his hands on his hips in triumph. The teacher approached them cautiously. 

"Uhh...H-hello. I'm Annie's and Oliver's teacher." Frisk looked at the woman and smiled kindly. Sans was making the two kids float around, having one hand behind his skull and the other was waving around, as Papyrus was running circles underneath the kids and the three were playing. 

"Oh hi. Sorry about that." The teacher blinked in surprise at the change in demeanor. 

"O-Oh! No problem! Thank you for that! He was a huge bad influence to the kids." Frisk smiled. 

"It's fine. Now, you wanted to talk?" The woman nodded. 

"About the twins..."


"man you two are smart. i'm so glad you're pulling pranks." Sans said as they walked in with hoods. They sat at a table and Frisk started scanning the perimeter. 

"Spotted 'em." Sans raised a bone-brow and looked in their direction over the menu. The two twins wanted to put the menu's down, but Frisk stopped them. Papyrus looked over his menu as well. 

"HUH...THEY DO SEEM TO BE HAVING FUN." Oliver snarled. 

"I swear if he's going to bone mom this early." Frisk snorted and Sans started chuckling. 

"i think he already boned her, bud...they did have some chemistry between them." Annie stuck her tongue out in distaste. Papyrus scrunched his face up. 

"I HATED THE TALK AND THIS DOESN'T HELP..." Frisk laughed. 

"Finally someone gave it to you. Now, eyes on the subjects." Sans narrowed his eyes. 

"are they seriously talking about physics on a date?" The four looked at each other unimpressed. 

"Losers." They all said at the same time. One of the waiters came to their table and they got some chicken nuggets for the kids, Frisk took some past and Sans didn't really care so he got the same. 

"What the hell is happening...? We need to set that mood. Look at those boring two...Not even a candle lit." Sans shrugged. 

"ez fix. watch this." He snapped his fingers and the lights got lower. Frisk smirked. He snapped again and the candles lit up. She gave him a thumbs up. The two love birds laughed and finally started holding hands and shit. 

"Man they suck at dating." Oliver said as he leaned forward. Frisk pushed him back. 

"Stay low, you twerp. You'll get our asses busted." Annie giggled. 

"I think it's cute they're taking it slow, unlike mommy's ex." Frisk, Sans and Papyrus scrunched their faces up. 

"Disgusting." Frisk said, remembering her own parents. That's when Oliver pointed at a table close to them. 

"Actually...That's him over there!" All of them looked in disbelief at the table. Frisk snarled. 

"Sans...That's the bitch that had a Gaster phase last year...." Sans groaned. 

"THAT bitch...? hell no. they WON'T be getting close to their table today." Frisk narrowed her eyes. 

"What the hell are we supposed to do? They're one wall away from a freaking murder fight." Oliver frowned. 

"We need to get mom and Gaster out of here." Frisk's eyes widened. 

"We start a fight and make it messy. If the guy goes their direction, you know what to do Sans." She said turning to him. He nodded. 

"THAT WILL SURELY MAKE THEM LEAVE. THEN MAYBE THEY'LL GO TO THOSE MOVIES THEY WANTED TO!" Frisk nodded. 

"What if they follow?" Frisk laughed. 

"Then we just make those two date the worse and save Gaster and Kat from it." Sans clicked his tongue and they all fist-bumped. Operation save Gaster's and Kat's date was in progress. At some point after they ordered their food and were getting ready to leave, the guy spotted her.

"Shit- Sans!" Frisk said. He closed his sockets. Frisk didn't even wait, as he made his way to them, she got up as well and they bumped into each other. 

"Oh i am so so sorry sir!" Frisk said. The guy snarled at her. 

"Listen, brat. I am busy right now ok-?"

"Oh yea yes i know i just wanted to properly apologize! please! I can buy you something in return." The guy growled and pushed her. Sans got up and grabbed his hand. 

"bro, what the fuck is your problem? She just wanted to apologize!" Sans said with fake anger in his voice. The guy got ready to yell at them when Kat and Gaster got up. 

"KA-" Frisk however was fast to sweep her foot on the floor and knock him to the ground, not letting him finish the name. Gaster and Kat were now out the restaurant. 

"You BRAT!" Frisk nodded at Sans who grabbed Papyrus and the twins and teleported. 

"Sorry...But i won't stay to argue with you, fucker. Cheers!" She darted towards the door. The guy was going to chase her but a waiter stopped him, telling him he needed to pay. He looked back and noticed his date was gone. That was the last time he will be using Tinder. 


"frisk! that bitch is following dad and kat like a lunatic and we lost her!" Frisk looked around and frowned. 

"Shit- Where did she go?!" Papyrus pointed at the alley-way on the other side of the street. Frisk snarled. 

"Hey kids...? I hope you still know how to use knives..." The kids beamed at her as she pulled out two pen-knives. 

"Scare her shitless for us, kk? We'll be right behind ya." Frisk pointed at Papyrus and Sans and the older skeleton teleported with both of them. The twins, brothers and Frisk were used to working together as a team. Apart from the bond that formed between Kat and Gaster one was formed between them as well. They made a great team and will surely be a legal one in the future when those two will get married. Frisk and the twins already had a weird type of bond since the orphanage. She was the only baby-sitter that didn't give them up. And they respected that. They truly appreciated her and now? After Kat and Gaster started dating and they realized it was hopeless and also dumb to want their biological father back? They loved Frisk just like a big sister. Sometimes people just quickly clicked. And fucked up kids always clicked fast. The twins weren't any better than the orphans. Their father was a bastard and that explains pretty much it. Now it was time to scare that lady just like how they learned to scare baby-sitters. They walked through the shadows and popped up behind her. The woman screamed in fear and screamed at the glowing eyes in the dark. She ran as fast as she could and all five started laughing. 

"Precious. Now come on! The movies aren't that far!" They started walking, Sans carrying Oliver and Frisk carrying Annie. They got to the movies only to see the duo of weird fuckers entering as well. Frisk snarled. 

"They didn't learn huh?" She said as she paid and took the tickets. Annie smiled. 

"Then let's give them a nice time at the movies." And that's exactly what they did. The whole movie they kicked in their chair, talked, threw drinks, pop-corn, everything they could at the pair. In the end they left 15 minutes earlier. They waited for Gaster and Kat to get out first before the kids exited as well. They followed them to their last stop, an ice-cream shop but to no one's surprise the pair of fuckers was there as well. Their parents/guardian narrowed their eyes at the bruised guy and the crazy looking woman. The kids didn't care they would get themselves busted. 

"That's it. Fuck staying undercover. Go." Frisk said. They all walked in, pulling their hoods down and getting between them. 

"Excuse you but please leave. Thanks." Frisk said, growling. The woman and guy backed away, intimidated and scared. They may have been crazy but not stupid. Gaster and Kat looked at them in surprise. 

"What the hell are you all doing here?" Frisk shrugged. 

"Getting ice-cream." Frisk said, with a shrug. The conversation didn't end there unfortunately. 


The two adults were sitting gloomily on the couch. The kids pouted. Frisk then lit up as she got an idea. 

"KAr1 COME WITH ME!" She gestured to Sans frantically. He gestured back and then the gesturing, looks and the bond did their part. He got the idea. He grabbed his father and nodded. Frisk looked at Papyrus and gestured to him as well. He immediately got the point. Frisk then gestured for Annie to follow. The girls went to Frisk's room and the boys went to Gaster's room. It wasn't hard to get what was happening. Frisk put Annie in a dress then picked a dress for Kat. Lastly Frisk changed as well and started working on Kat's hair. 

"You're good at this. Did your mom teach you?" Frisk giggled. 

"Abuela...My mom wasn't um...The best..." Kat frowned. 

"What about your dad?" Frisk laughed. 

"My only father figure will forever be Gaster...But hey!" Kat looked up. 

"Now i have a mother figure as well. Come on! Let's get some quick make-up going." Kat smiled sweetly at the girl's words. Frisk put make up on her, Kat and Annie. The guys were all dressed in costumes. 

"Sans! Catch!" Frisk said as she jumped down. He snorted and teleported underneath, catching her. Annie rushed down the stairs and finally Kat exited her room. Sans whistled as his father was speechless and the three kids clapped in joy. 

"you're good!" She gave him a thumbs up as she slowly descended the stairs. Sans snorted. 

"dramatic much." Frisk smacked him over the skull. 

"DON'T be an ass. Now! Le musique!" Sans gave her a smirk. 

"aren't you mexican?" She face-palmed and went over to her phone. She ploped it in the speakers above the fire-place. She put on a song she loved: The Howl's Moving Castle theme- Merry-Go-Round of Life by the Nuvo Orchestra. She smirked. 

"Shall we?" Sans snorted. 

"i don't think those two actually can speak anymore." Sans said pointing at Kat and Gaster who were shily sitting next to each other. 

"Oh no worries, they'll come around. Now then...Time for some dance~ Sans, the couch and coffee table." He snapped his fingers and they moved. She nodded her thank you and hit the play button for the song. 

"You know the drill Sans." He laughed. 

"always happy to do it." He put his hand out and Frisk took it. He put his hand on her waist and she put her hand on his shoulder. 

"Anddd~ 1, 2, 3. 1,2,3. 1,2,3-" Frisk said, to show the others how to dance. Sans and Frisk began spinning. Kat and Gaster looked intrigued. Papyrus clapped. 

"NYEH HEH HEH! COME YOUNGER SIBLINGS!" Papyrus joined hands with both of the twins as they began spinning as well. The kids were laughing. Gaster and Kat smiled. 

"One crazy family...I'm sorry for tonight but...Shall we?" Kat laughed. 

"You dummy...It was a lovely night and the kids just made it better. And yes, we shall." Kat put his hand on Kat's waist as she put it on his shoulder and they held hands with the other. Frisk and Sans beamed as they fell in step as well. At first they didn't get the step right but soon enough Frisk started counting again and they managed to do it. 

"The kids are good." Kat said, laughing, as she realized they finally felt that romantic connection. It was for a moment just them in the room. Frisk and Sans shared a knowing look at that. Sans twirled Frisk around and she giggled. Papyrus scoffed. 

"HOW AM I SUPPOSED TO DO THAT WITH TWO PARTNERS. HERE WE GO!" Papyrus twirled both twins and they all laughed. Gaster tried twirling Kat but Frisk's foot out-stretched too far in a pose. 

"Oops~ We've got carried away~ Not intentional~" Gaster caught Kat and as she was bent down they kissed. Frisk and the kids cheered. The rest of the evening they spent in their make-shift ballroom dancing. Not necessarily ball music (they did at some point have fun with Just Dance) but it was a good night indeed. In moments like these the two families, soon to be one, couldn't be happier as they realized just how well they bonded and fit together. 

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