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

I can't see you!

"Gaster, no." Pidge said as she was playing on her DS on the couch. Gaster smirked. 

"Gaster YES! Come on, Frisky~" Pidge narrowed her eyes. 

"Why do you do this...??" She asked. Gaster pouted. 

"PLEASE! I need to scare them! They put an eel in the bath-tub!" Frisk snorted, covering her mouth. Gaster frowned at her and she looked away. 

"Sorry, sorry...Just...gimme a minute..." She started snickering with Apollo, who was hanging next to her and then she turned to the skeleton monster with a straight face. 

"Yes. I see the problem. But...why do i have to be the test subject? Do it yourself!" Frisk says to him. He rolls his eyes. 

"Where's the fun in that??" Gaster says and Frisk face-palms. 

"I hate you, Gaster....Gimme that." She snatches the potion from him and drinks it. Suddenly, she vanishes. She gasps. 

"YOOOO!" Frisk says as she picks something up. 

"IT'S FLOATING!" Gaster said. The two started laughing. 


"WHAT, FATHER? YOU HAVE BEEN STARING AT ME STRANGELY ALL DAY!" Gaster shrugged. 

"Just making sure there are no ghosts here." Papyrus' sockets went blank. 

"G-GHOSTS...?? WHAT DO YOU MEAN?!" Gaster hummed and shrugged. 

"I don't know....Just that there might be ghosts here...." Papyrus shook his head. 

"T-THERE ARE NO SUCH THINGS A-AS GHOSTS FATH---AHHHHHH!" Papyrus screamed as the book started levitating behind Gaster. Gaster turned around and raised a bone-brow. The book was dropped. 

"What? Is there something on my face...?" Gaster rubbed his face and then looked at the book. 

"Huh...How did this get here....15 paranormal deaths produced by ghosts....What a strange title. Welp. I will see you soon, son." Papyrus was staring with blank sockets at the door as his father exited. 

"Y-YOU ARE A NICE GHOST...R-RIGHT...??" Papyrus waited. Nothing happened. Suddenly, the windows flew open and the curtains started flowing in the wind. Papyrus shrieked and started running, screaming for his brother. 

"SAAANNSSS! MY ROOM IS HAUNTED!!" Papyrus yelled. Pidge chuckled and left, high-fiving Gaster who was waiting at the door for her on her way. 

"what the- paps, what the hell are you talking about??" Sans said, frowning, as he looked up from his phone. Papyrus sniffled. 

"T-THERE WAS THIS BOOK...W-WITH DEATH...A-AND THE WINDOW...A-AND...." Sans sighed. 

"alright. let's go to your room, Paps." The two walked, hand in hand, to the younger skeleton. Sans opened the door and looked in the room with a raised bone brow. 

"see? nothing here--" Some pencils fell off of Papyrus' desk and the little skeleton flinched and yelped. 

"okkkk. chill paps. that was just the pencils--" A pillow flew in Sans face. He froze, 

"umm....ok...drop something if there's really a ghost her. Several books fell out of the shelves. The two skeletons looks at each other, panicked. 

"DADDDDDD!" They both yelled, closing the door. Frisk started laughing. This was actually really fun. 


"Oh my...A ghost? Come on, Sans. You too? Don't be silly--" Gaster's mug flew in the wall. Gaster blinked in surprise. 

"Oh." He said, looking at his empty hand. 

"ARE WE GOING TO DIE?!" Papyrus aked. Gaster shook his head. 

"Of course not. It's just a ghost. We'll just ask it what it wants with an ouiji board." Gaster said, determined. The lights started flickering and Gaster hummed. 

"The ghost seems excited for this, huh??" Sans snarled. 

"ARE YOU OUT OF YOUR DAMN MIND, OLD MAN?? I FEEL LIKE THERE'S A FEW LOOSE SCREWS IN THERE!" Gaster snorted. 

"Of course notttt! I'm just trying to live my life...with a ghost in the house." Another mug got thrown to the wall. Gaster clicked his tongue in distaste. 

"I liked that mug." Gaster complained. The doors to the cupboards and oven from the kitchen were now opening and closing. Gaster sighed. 

"Fine fine. Let my mug shatter with my dreams then..." Gaster said. Sans and Papyrus frowned. 

"HOW COULD YOU BE SO CALM, FATHER?! WE'RE BEING HAUNTED BY A GHOST!" Gaster waved his hand dismisively. 

"It happens. Now...OUIJI BOARD!" 


Frisk was excited for this. The three were sitting in a circle, on the floor, with candles and an ouiji board in front of them that Gaster brought from a shady marketplace. Frisk was waiting as they had their hands on the small wooden triangle that she had to move to talk to them so the prank could go well. 

"Is there a ghost in here? May we speak with it." Frisk smirked and slowly pulled towards the yes on the board. Sans and Papyrus looked panicked. 

"What is your name?" Frisk frowned, thinking of a name. She decided to just spell 'not important'. Gaster hummed. 

"Ah, i see. Why are you haunting us?" Frisk decided to get creative. She spelled rage and revenge. Technically, she wasn't wrong. 

"FATHER...THEY SEEM UPSET." Frisk melted at Papyrus' concern. It was adorable. 

"I know, Papyrus. Sans?" The older son frowned. Frisk watched him, patiently. 

"uhh...who are you getting revenge on?" Frisk smirked. Perfect. She spelled Papyrus, then she spelled Sans. The two sons gulped. 

"W-WHY...?" Frisk needed to get creative again. She chose to tell them they disrupted her thomb. 

"oh god..." Sans said, clearly uncomfortable at the whole situation. Frisk was amused. 

"D-DO YOU WISH TO KILL US...??" Frisk had to really hold in the laugh that threatened to come out as she saw them pale when she answered 'yes'. 

"Oh GOD..." Gaster said. Frisk then decided to start playing the role of the killer ghost. She breathed down Sans and Papyrus' necks then she started making random things 'levitate' so to speak by holding them up. Papyrus and Sans started screaming as she would even flicker the lights by constantly turning them on and off. Gaster was laughing at them, cruely. He took out his camera and snapped a picture. 

"That is enough, Frisk. Thank you." She dropped the things and started laughing. 

"Alright, G. High-five." They both high fived as the other two skeletons were looking at them, enraged. 

"wait...FRISK?! you two have been messing with us! THIS IS GENIUS, HOLY SHIT!" Sans said with wide sockets. Papyrus was still shaking. 

"NO GHOSTS..??" The potion wore off and Frisk appeared in front of them. She smiled softly at Papyrus who rushed to hug her. 

"No ghosts...Aww, I'm sorry Papy..Did i scare you too badly?" The small skeleton nodded and hugged her tighetr. 

"Sans, i'm kicking you out of my bed to sleep with my little bean." Sans frowned. 

"why not kick apollo?? heck- we can all fit in that damned bed of yours!" Sans said, crossing his arms, clearly not wanting to not sleep with Frisk in his arms. She hummed. 

"A valid argument. Alright, you are granted your stay." Sans sighed in relief and hugged her too. Apollo then curled around her feet, purring. 

"You all really love me, huh?" Frisk said, amused. Gaster looked at her unimpressed. 

"We fought for you multiple times and only now you notice? Are you sure you're taking after me?" Gaster asked. Frisk looked at him, unimpressed. 

"I'm adopted." Gaster scoffed. 

"You're still my child now! I am your legal guardian which is close enough to me being your father!" Frisk shrugged. 

"Alright. I'll give you that one. Now, if you excuse me? I need to get these babies to bed. Come on." Frisk said as she picked Sans on her back, Papyrus in her arms and then let Apollo jump on her shoulder. She carried the three up the stairs and then to her room. Gaster sighed. 

"What a bunch of weirdos i'm raising....Welp. Time to watch cartoons! DEFYING THE LAWS OF SCIENCE WOOO!" And so the day ended with a succesful prank and a giddy and 'rebelious' Gaster watching cartoons. 

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