I do not own Undertale, that belongs to Toby Fox.
Chapter 1 No Going Back
When the monsters were first trapped underground, they tried their hardest to eke out a living. Although they lacked the power of Determination that the humans possessed, they were still determined to survive. Over time they constructed an entirely new civilization in the Underground and managed to persevere despite being imprisoned. Many were content with their new life underground and settled for what they were dealt with, but this did not necessarily mean they were happy. Day in and day out, they would go on doing the same routine over and over with little opportunity to make any changes. Many monsters found themselves stuck in a bleak, repetitious existence with little to no chance at advancing and improving their lives. It seemed like they would be trapped down there forever and never get a chance to live a better life, but then the barrier was finally removed. Monsters were presented with an opportunity to return to the surface and start anew.
Naturally It was a bumpy start when humans discovered that the monsters had returned to the surface. Their liberation did lead to some…complications. All the knowledge humanity had on monsters came from legends and stories passed down about the Great War long ago, which didn't paint monsters in a positive light. Meaning that they were quick to jump to conclusions when they first saw monsters in town. Either they ran and hid in fear or went on the offensive.
Thankfully, the monsters didn't have to worry that their return would be short lived for they had Frisk, the young human who managed to circumnavigate the perilous Underground and not only face multiple hostile monsters, including Captain of the Royal Guard Undyne and King Asgore, but did so without taking a single life. The child managed to befriend just about every monster they encountered (save for one angry, possessed dummy who's more of an aggressive acquaintance at this point). So it's no surprise that Frisk managed to convince the world to give monsters a chance and help the monsters make their claim on the surface. Over time, humans lowered their guard and allowed monsters to live amongst them. A small settlement was built near the base of Mt. Ebott which has long since flourished into a small city dubbed New New Home. Not the best name but no one had the heart to reject Asgore's suggestion. Most monsters live in New New Home, with a few still residing in the Underground and a margin having gone off to explore the world.
Life isn't perfect but it's arguably better than living in the Underground. There are some lingering prejudices that will take time to fully abolish. Humans and monsters still have some concerns about the other and the changes that are occurring to accommodate monsters. As much as some of them want things to go back to before the barrier was lifted, they have to accept that what's done is done. The monsters are out of hiding and there's no going back.
Undyne's day has gone swimmingly thus far, and it's not even 10AM yet. First, she got up early to run a quick jog around the block 50 times, give or take. Then, she got in a quick shower, scrubbing her cerulean blue scales of sweat and rinsing out her red pony tail. After slipping on a clean black tank top, blue jeans, eyepatch, she made some breakfast for herself without destroying the kitchen this time. Granted it was just a protein bar and some fruit, but it counts in her book. As of now, she is chilling in the kitchen Alphys designed to look exactly like the one in her old house. From the black and white tiled floor, to the pale blue wallpaper with patterns of pink fish, to her broken table that's being held together with lots of duct tape. All the while said genius is still asleep, wiped out from marathoning the new season of anime the night before. Undyne still can't get over how adorable Alphys looked passed out lying in Undyne's lap. Undyne wanted to make her some breakfast but Alphys, along with the local fire department, insisted she not do that in the future.
Speaking of the short scientist, Alphys is curled up in bed sleeping peacefully and looking so small in the king sized bed by herself. Her phone vibrates and buzzes on the night stand next to the bed waking her up. Alphys opens her sleepy eyes and blindly reaches for her glasses and phone. She sits up and puts on her glasses to read the text that she just got. Alphys replies to the text and puts her phone down to look around the messy bedroom and find Undyne. Once she spots the time on the nearby clock, it dawns on her that Undyne is probably up already. Alphys crawls over to the edge and climbs out of bed then puts on a fluffy pink robe, with her tail poking out in the back, to warm herself up. She makes a mental note to wash the pile of lab coats in her room next to Undyne's tank tops and spears on her way out of the bedroom.
Undyne can hear the pitter patter of Alphys's stubby feet heading down the stairs. As soon as she reaches the bottom of the stairs, Undyne shouts, "Morning Alphys! Sleep well!?" Alphys is startled by the sudden greeting and cautiously enters the kitchen with a hand over her chest. "Oh y-yes. I slept well." She uses the stepping stool to reach the cupboard and scrounge up something quick to eat, given that it's nearly 10. Undyne just watches her admiring Alphys's dedication to being independent. With a sense of trepidation, Alphys asks, "So um what did you think? About those new shows we tried out last night?".
"It was pretty good. Especially that one about volleyball. I never realized that it was so extreme and epic! About time people realized that these sports are just another type of battle." Undyne responds, her fists clenching up and a grin on her face. It's not too surprising that Undyne would like sports anime, given how much Undyne loves seeing people get hyped up and passionate about anything. It's a relief for Alphys considering that Undyne doesn't share Alphys's love of anime but now they had something they both enjoyed. "Oh, well I'm glad you liked it. Maybe we can w-watch a little more before Frisk and Papyrus come over."
"Yeah, we got time before those dorks come over. Plenty of time to clean up and get ready to teach those two a lesson. Fuhuhu!" Alphys has her concerns that the kitchen will end up decimated but with Frisk here it shouldn't end catastrophically. There will likely still be a mess but Alphys has come to expect this from Undyne when she does her cooking lessons. The messes are usually easy to clean up and haven't gotten problematic. Besides, Undyne's endless amount of energy and enthusiasm are just some of the many traits she loves about her. At times Alphys can't help but envy her outgoing attitude. Even with all the progress she's made Alphys is still soft spoken and shy around others, making it hard for her to make herself heard. All the more reason to be grateful that Undyne is thoughtful enough to listen to her from time to time and speak on her behalf when necessary. At times she feels like she doesn't deserve this wonderful life she has but Undyne manages to find a way to cheer her up and convince her otherwise.
Alphys counts herself lucky to have Undyne in her life. If not for Frisk, she and Undyne wouldn't be together or living on the surface for that matter. She would probably still be hiding out in her lab, rewatching episodes of Mew Mew Kissy Cutie by herself with only the Amalgamates to keep her company and the occasional routine maintenance check-up for Mettaton. She would have been stuck harboring her secrets and hiding from the world for the rest of life, but now there's no reason to hide.
They start up another episode and Alphys gets comfy next to Undyne. She eats some toaster pastries while Undyne cheers on the protagonist's team as if she is an eager sports fan on the side lines. Occasionally she glares daggers at the overconfident opponents as well as aiming actual spears that requires Alphys to calm Undyne down before she destroys the TV. After that Undyne is pumped and preps the kitchen for the cooking lesson, kicking anything not important off the counter and prompting Alphys to add on to the shopping list what they need to restock and call Woshua to stop by afterword. Alphys planned to spend most of the afternoon down in her new lab working on some new inventions, and maybe work on some fanfiction that she's been putting off for too long.
It is about a quarter to 12 when there is knock on the door while Undyne is getting some tea ready for their guests. "Hey Alphys, can you get that?!" Undyne shouts while she searches the pantry for the right blend.
Alphys looks over shoulder while she's in the middle of picking up around the living room. "O-ok!" She confirms, believing that she was loud enough for Undyne to hear. She hasn't finished cleaning up but knowing Papyrus and Frisk, they won't mind. They'll be spending their time in the kitchen anyway, making an even bigger mess. She stops what she is doing and goes to open the door. She pulls the door open and says "Hi guys, you're here earlier than-". Her smile shifts into a startled frown as she cranes her head back to look up at the towering visitor. Standing before her isn't Frisk or Papyrus, but a monster that shares a striking resemblance to Alphys. She bears the same yellow scales, a reptilian curved tail, and points on the back of her head like Alphys yet stands at about Undyne's height with a slimmer, skinny build and a minor slouch. She even stands nervously like Alphys all keyed up. Her arms start to raise but she stops and lowers them. "Um h-hello Alphys. I….I'm sorry for not calling in advance b-but-"
"Hey Alphys! Are they here yet!?" Undyne shouts again, surprising both monsters. Undyne steps out of the kitchen and spots the unexpected guest at the door. "Oh, it's someone else. You recognize her Alphys? She kinda looks like you."
Alphys glances from her girlfriend to the woman in the doorway. Her claws grip the doorknob and she takes a deep breath before answering. "This….is m-my mother." The taller monster timidly waves at Undyne who is now frozen in shock. She's looks like a deer in headlights or Frisk getting caught staying up late to watch Mettaton.
"Did….did I come at a bad time?" Alphys's mother asked. For the first time, Alphys wishes that she was back underground hiding in her lab. It won't do any good now, since there's no going back.
Happy New Year everyone. It is great to be back writing fanfiction. Expect to see updates every 3-4 days and what lies in store for Undyne, Alphys, and her mother.