Upside-down

Gaster awoke with a gasp. He was surrounded by his human friends and family...FRIENDS AND FAMILY! THEY REMEMBERED HIM!! Papyrus threw himself in Gaster's arms. 

"FATHER!! YOU ARE ALIVE!!" Papyrus said hugging him tightly. 

"W-we were so worried Mr. Gaster! It felt like you were out for forever!!" Said Alphys as she pushed her glasses up her nose. Gaster chuckled. 

"Yeah!! Any longer and i would have freaked out! Tell us next time you decide to take a nap, OKAY?!" Said Undyne with her usual toothy grin. 

"yeah..you made paps cry like a baby." Sans said with his usual laid back shrugg. 

"WHAT I DIDN'T CRY! I DON'T CRY!! I JUST...CAUGHT SOMETHING IN MY EYE!" Gaster laughed and asked 'what did you catch'.

"TEARS!!" They all laughed at that. 

"Now now the important part is that Wing Dings is safe. Here Gaster why not drink some tea?" Chara scoffed at that and Asriel face palmed.

"We already told you that stuff if poisonous for monster and you should drop it..." Chara said with a sigh. 

"Now now let's give the poor man some space. They must be very exhausted. Though, from what, i am not certain. We don't really rememeber what happened..." Gaster looked surprised. 

"You don't remember?? Well...Frisk broke the barrier with me." Gaster said, speaking techincally the truth. Then he looked around. 

"Where's Frisk....?" Sans and him both froze. 

"shit- FRISK!!" Sans said as he started rushing. Gaster stared in disbelief for a second until he started rushing as well. They walked and entered the barrier room, instead of a barrier they saw a patch of grass and in the door leading to the outside world. 

"where is she..." Sans said frowning. He turned towards his father and grabbed him by the collar. 

"listen old man- i haven't fully forgiven you yet but I SWEAR TO GOD IF YOU DID ANYTHING TO FRISK I WILL PERSONALLY KILL YOU MYSEL--"

"CALM DOWN, SANS!! I would never harm Frisk..." Sans frowned and let go of his collar. 

"and how am i supposed to trust you...?" Gaster sighed. 

"I know i fucked up in the past...I truly did...with all of you...but i promise i will be better....I would never hurt her because she was the one showing me my wrongs....I raised her like a father-" Sans stiffened. 

"YOU are the doctor from the orphanage...?" Gaster nodded. 

"After i fell in the Core i ended up on the Surface..." Chara frowned. 

"Then how did you end up in the Void...? And how did you bring us back...??" Gaster chuckled. 

"You'd be surprised what Frisk has thought me apart from real compassion..." Sans frowned. 

"that still doesn't answear the biggest question...WHERE IS SHE?!" They all rushed again out through the arch-way leading to the Surface. There she was. Her feet dangling off the edge as she was enjoying the sun. She let her wings futter and enjoy the sun-light. 

"Frisk..." Gaster said reliefed. Frisk turned around with honey yellow eyes. As soon as she met Gaster and the others they started changing colors in excitement. 

"Oh! You're all finally awak--" Chara and Asriel rushed to hug her. With that she lost ballance and they all fell off the edge. The others were worried as they gasped in shock....Apart from the three living in Snowdin. Gaster started laughing. 

"PUT SOME STRENGHT IN THOSE WINGS FRISK, YOU'RE LIFTING TWO!!" Frisk came up, annoyed and holding the two. 

"They're heavier than they look, you know?? OWWW!! THAT'S MY FUR YOU ANIMAL!!" Frisk said to Asriel. He chuckled apologetically. The humans all finally set on the edge as Frisk and Gaster were watching from behind. 

"oh my...." Said Toriel as her whole family was bundled together. 

"Man...haven't been up here in ageesss..." Chara said. Asriel nodded.

"No kidding..." Asriel said. Asgore laughed. 

"Isn't it beautiful, everyone?" The King said.

"Wow...It's e-even better than on TV. Way better! Better than i ever imagined!!" Alphys said. 

"The sunlight is so nice..and the air is so fresh!! I really feel...alive!!" Said the Head of the Royal Guard as she stretched.

"FATHER...SANS...UHH...WHAT'S THAT GIANT BALL?" Said Gaster's younger son. 

"we call that, 'the sun' my friend.." Said his other son. 

"THAT'S THE SUN?! WOWIE!! I CAN'T BELIEVE I'M FINALLY MEETING THE SUN!" Gaster chuckled at his son. 

"It's not alive, Papyrus." He said. The younger human made a funny face and said 'OH'. 

"I could stand here and watch this for hours..." Asgore said. 

"Well, i don't mean to be rude but...you won't really get hours since soon the sun will set..." Frisk said to the King. 

"What do you propose, Frisk? This is your world after all." Frisk's eyes widened and started changing colors again. 

"M-Me...?" She asked. They all nodded and Gaster put a hand on her shoulder. 

"Yes you...You have helped us so much. And i want you to help us integrate in your kind. Will you be our ambassador, Frisk?" She stared in disbelief and smiled as she nodded. One by one each and every human left going down the path, waiting for Frisk to get them to the city. However two humans remained. Sans and Gaster. Sans was hiding in the shadows. 

"Well done, Frisk..." Frisk looked at Gaster and smiled with teary eyes. 

"You think he'd be proud...?" Sans heart broke at her cracking voice. 

"Just as he said in the fight....He is very proud of you..." Frisk looked at the sun and sighed. 

"You think i'll do well, Gaster??" He chuckled. 

"There's no one else who could do it better...." Frisk smiled again. 

"You know this reminds me of when you used to sneak me out of the orphanage..." Gaster and Frisk both were laughing now. 

"Ah yes, we would go berry haunting and catch bugs to experiment on." Frisk smiled. 

"And snails." She said. Gaster looked away in guilt. 

"I'm sorry...I left you alone....in that god forsaken place and--" She turned around and hugged Gaster. 

"Stop....i'm just happy you're back...." He sighed. 

"I'm happy as well...I can make up for the shit in my past..." Frisk patted him on the shoulder. 

"Forgiveness comes with time...I am sure they will forgive you...You're not THAT Gaster you're THIS Gaster...you changed for the better...And that alongside realizing you were wrong? I think it's the best start you could ask for." The man smiled. 

"I'll be waiting for you with the others...Take your time..." Frisk smiled and nodded. That's when Sans teleported next to her. 

"sooo...ambassador or humans....how are ya~?" Frisk didn't even jump as he teleported. She smiled to him, wagging her tail. 

"I guess i'm good...I..I don't really know how to feel..? I never really had friends to you know..." Sans look softened. He chuckled. 

"welp, i'm glad to be one of them." Frisk blushed and smiled. 

"Sooo~ How are you with Toriel??" Sans was a bit confused at that. 

"huh, what?" Frisk giggled. 

"Nothing, nothing, doesn't matter....Soo how you like the surface...?" Sans smile grew. 

"it's better than i ever imagined i-...i can't thank you enough for this..." Frisk giggled again. 

"It's no problem..i couldn't just leave you all down there....COME ON! WE'RE MAKING EVERYONE WAIT!" She said cheerfully. That's when Sans stopped her. 

"if we're going to go to the surface you need to accept you are a gryphon as well." Frisk froze and blinked a few times. 

"You mean...hold my bigger form....??" Sans nodded. 

"that's exactly what i mean...." Frisk sighed and fidgeted. 

"Are you sure...?" He smirked. 

"positive." Sans ruffled her hair. 

"come on, sweetheart." Frisk sighed. 

"I trust you, starlight..." They both started walking down the mountain. 

It had been a few weeks since the humans emerged from the Underground and things have been moving fast. Monsters got accustomed to humans quickly. Maybe thanks to all the stories and movies inspired by them? But Frisk has been working at the embassy alongside the Royals and Chara. Humans have been extending to other cities but the main popularity remained in Ebbot City. Frisk was right now helping Papyrus, Gaster and Sans settle in their new home. 

"Ah, just leave that one there, Frisk! Thank you." Frisk nodded as she set the box down. Sans was snoring on the couch as Papyrus was bringing a few boxes in. 

"BROTHER! AT LEAST DON'T SLEEP NOW AS WE'RE STILL MOVING!!" Frisk giggled. 

"I'm sure he's just tired. Well then. If we're done here, I'm going back to my apartment!" Frisk said smiling. Gaster raised a brow. 

"Speaking of which, where do you live, Frisk?" She shrugged. 

"In a cheap apartment a few streets away....?" Frisk said as she awkwardly rubbed her neck. Gaster froze. 

"But those apartments are so....filthy and broken down." She laughed awkwardly. 

"I don't um...have money for more...." Gaster frowned and looked at his sons. 

"What job did you have??" Frisk shrugged. 

"I had multiple low paying jobs really...I never had money to go to college..." 

"Well...See ya!" Frisk said waving as she exited their house. 

It was early in the morning as the humans all came to her apartment. She was still in her pajamas. She blinked a few times in surprise, still trying to get her eye color yellow as usual. 

"Uhhh...what are you all doing here...??" Undyne scoffed.

"Packing your shit, you're moving!! Duhhhhh!!" The humans all entered. 

"W-what...? Moving? W-where??" Frisk asked confused. Sans chuckled as he teleported behind her. She flinched as he put a hand on her shoulder. 

"with me and paps since we're all going to college~ chara and asriel will be there as well." Frisk shook her head in disbelief. 

"No...You didn't-...Really??" She said lighting up as her tail was wagging from side to side. Sans chuckled. 

"oh course, sweetheart! we figured you can't keep living in this dump." Toriel came and smiled. 

"We all agreed we will help you move!" Frisk smiled with teary eyes. 

"You're all too kind!!" Toriel gasped. 

"Oh, that's right! I needed help in moving some of the furniture! Sans, will you help me?" Sans blinked a few times. 

"wait wha--" But Toriel was already dragging him after her. Frisk giggled and waved to him as she went over to the other humans. Sans frowned. He wanted to talk to her some more...

"I can't believe this...I'm going to college...this isn't a dream right?" Chara scoffed. 

"More like a nightmare...Can't believe the embassy allowed this." Asriel shrugged. 

"Don't ask me. It was mom and dad who did it." Sans looked at his phone, unphased. 

"as life goes on, so must our education. now get your whinny asses here."

"BROTHER IS RIGHT! WE NEED TO MAKE SURE WE CAN GET PROPER JOBS HERE!!" (plus college love stories are MWAH for a fan fiction) 

"UGHHHH...Just let the bus drive me over..." Frisk smacked Chara and they all walked in Campus. A new chapter to their stories will happen in this place.