Chapter I
We open on a quiet bridge suspended above a deep pit. Lots of blues and blacks surrounded the bridge, which combined together to create a calm and peaceful atmosphere. A human set foot onto the bridge, breaking the silence. The human had a malicious air about them, with a sweat soaked bandanna, menacing looking ballet shoes, and a grimy blue and magenta striped shirt that released a tiny bit of dust with every step its wearer took. When the human was a few feet away from the end of the bridge, another figure set foot on the bridge. The figure was a yellow monster with no arms, a tail, and spikes on the back of their head. The monster yelled to the human, and after the monster caught up to them, they attempted to talk to the human. “Yo. Undyne told me to stay away from you. She said you… hurt a lot of people.” The monster stopped, which created a tense atmosphere that hung heavy in the air before they continued. “But, yo, that’s not true, right?”
The human didn’t respond, which made the atmosphere so heavy it was almost tangible. The monster swallowed and said “… yo… Why won’t you answer me?” The human smiled maliciously, which made the monster nervous. “A… a… and what’s with that weird expression…?” The human’s smile grew wider as they took a few menacing steps towards the monster, who backed up a little and started to sweat before swallowing dryly. “Oh… Oh man…” The monster kept sweating. “Man, my h-heart’s pounding right out of my chest… What would Undyne do?” The monster was attempting to talk to themself, but the human heard them anyway. As the silence lengthened, the tense atmosphere continued to get heavier and heavier, which made the monster even more nervous. Suddenly, the monster appeared to regain confidence before saying “Yo… Y-you’d b-better st-stop r-right where you are… Cause if you w-wanna hurt anyone else… you’re… You’re gonna have to get through me, first. A… and… and…” The human’s smile grew even wider before they delivered a powerful kick aimed at the monster…
…Which was received by a blue-scaled fish-humanoid with an eyepatch, a ponytail, and a full set of heavy metal armor. The yellow monster looked shocked, and said “Undyne… You’re… You’re hurt”
Undyne smiled at the yellow monster and said “Hurt? It’s nothing. Next time, listen when I tell you to leave, okay?”
The yellow monster gave Undyne a worried look and said “Undyne… I…”
“I’ll take care of this! Get out of here!” Undyne said, the anger and urgency leaking into her voice. At this, the yellow monster gave Undyne another worried look while edging away, before finally speeding off.
After the yellow monster was gone, Undyne’s smile disappeared as she turned her gaze to the human. She spoke with shaky words, saying “… heh… ‘It’s nothing’… No… s-somehow, with just one hit… I’m already… Already… D… damn it…. Papyrus… Alphys… ASGORE… Just like that, I… I’ve failed you.” Undyne’s body started to split apart, and the human smiled with a sick satisfaction. But just as Undyne was on the cusp of disintegrating, she stopped.
“No…” The human’s sick smile disappeared, and Undyne continued talking. “My body… It feels like it’s splitting apart. Like any instant… I’ll scatter into a million pieces. But… Deep, deep in my soul. There’s a burning feeling I can’t describe. A burning feeling that WON’T let me die. This isn’t just about monsters anymore, is it? If you get past, you’ll… You’ll destroy them all, won’t you? Monsters… Humans… Everyone… Everyone’s hopes. Everyone’s dreams. Vanquished in an instant. But I WON’T let you do that. Right now, everyone in the world… I can feel their hearts beating as one. And we all have ONE goal. To defeat YOU. Human. No, WHATEVER you are. For the sake of the whole world… I, UNDYNE, will strike you down!” Suddenly, Undyne emitted a blinding light, forcing the human to shield their eyes with their arms. When the light faded, the human put their arms down and saw Undyne was completely different. Her pupils were white, and her sclera was black. She no longer had an eyepatch, and her newly revealed empty eye socket emitted a flashing light in the shape of a spear. Her hair was spiked at the ends like a trident, and her fin rays became more rigid and pointy. She also appeared to have donned a new set of darker colored armor with hearts on her chestplate along with new white gloves, which had spikes protruding from their backsides, accompanied by boots with pointed toes. “You’re gonna have to try harder than THAT.” Undyne said.
The human briefly took a fighting stance before launching at Undyne, delivering a kick with their ballet shoes and stealing the spear that Undyne had summoned. Undyne responded by summoning a multitude of spears, sending them at the human at a moderate speed. The human blocked them with the stolen spear with a malicious smile on their face. Undyne smiled herself before she dramatically sped up the remaining spears. This caught the human off guard, and the smile they previously had turned to shock as they barely managed to parry all but one of the spears, with the spear that they didn’t parry slicing a deep gash across their cheek. After landing another attack, the human dodged another flurry of spears. This rotation continued for a while, with the human occasionally taking a hit or two, and maybe healing it off every so often with some food, before parrying or dodging more spears and attacking.
After a while, both combatants were on their last legs. Undyne was breathing heavily and exhaustedly, and the human had no food left, along with having a number of cuts and stab wounds. Suddenly, a warcry resonated from behind the bridge, and both combatants looked in shock to see the monster kid from earlier charging at full speed at the human from behind. The human’s shock turned to a wicked glee as they ran towards the monster kid, and Undyne’s shock turned to desperation as she chased the human in an attempt to stop what would come next.
But even though she moved faster than the human, she was too slow.
She was just too slow.
The human jumped at the monster kid and executed a mid-air round kick that landed on the side of the kid’s head, causing them to fall sideways and off the bridge. Undyne stopped with her hand still reaching out towards the spot where the kid was, but let it slowly drop. The human turned back to Undyne and smiled while saying “Wow, you couldn’t even save that little wuss? I thought you were Captain of the Royal Guard.”
At that, Undyne summoned a spear in her hands and clenched them so the knuckles became as white as the gloves that covered them. “You… you DEMON!” Undyne said before charging full speed at the human before swinging instead of thrusting their spear at the human, which knocked the human’s stolen spear out of their hands and sent it spinning off of the bridge. Undyne then threw a powerful right hook that landed witj a crunch and caused the human to spin around before she let out an equally powerful kick that caused them to stumbling halfway across the bridge. “This… is for Papyrus!” Undyne yelled before throwing her spear with all of her strength at the human.
There was a resonating SHUNK as the spear impaled the human’s midsection. The human despaired for a brief moment before they remembered that they could simply load their previous save, so that’s what they did.
LOAD FAILED
“Wh… Why can’t I load the save…?” The human thought, confused.
LOAD FAILED
LOAD FAILED
LOAD FAILED
“Is that monster’s determination somehow greater than mine?” They thought disbelievingly. “How is that even possible?”
Three more spears pierced through the human, and they fell forwards, on their hands and knees while throwing up a large amount of blood as Undyne slowly walked over to them. Now the human was actually fearing for their life, they thought frantically for something, anything that could help them survive, but their efforts were in vain, there was no way out. The human steeled themself as they turned to face the approaching Undyne, intending to at least leave the vile fish a few parting words. After she reached the human, Undyne picked them up by their neck and growled “Nowhere left to run you little brat, so face your death like the villain you are.” Undyne tightened her grip on the human’s neck, which caused blood to trickle out of their mouth and down her white gloves. “Think about everything you’ve done while you burn in hell, you murderer.”
Undyne then summoned a spear, but before she could use it, the human spoke. “I’m the murderer?” Even more blood trickled from their mouth. “You’re murdering me too, you know. And once you do, you’ll become just like me, and what I say will…come back… to haunt… you…” The human coughed more blood.
“I’ll never be like you, not ever!” Undyne growled fiercely.
“Oh, you’-” Undyne shoved her spear into the human’s chest, cutting them off before they could finish what they said. The human threw up some more blood and coughed, which splattered all over Undyne, before going limp. The human was dead.
Chapter II
A deathly silence fell that seemed to choke the air. The only noises to be heard were Undyne’s heavy breathing, and the human’s blood slowly dripping onto the unsteady bridge. Undyne remembered the SOUL that the human possessed and reached into the human’s corpse, ripping the SOUL out and clutched it in her blood soaked glove. “Be gone, you trash,” Undyne said before hurling the ravaged corpse off of the bridge and into the chasm below. Undyne then walked off, not even taking the time to wait and hear the wet thud of the human’s remains hitting the ground far below.
As soon as the bridge was out of view for Undyne, a skeleton appeared out of nowhere a few feet in front of her. “heya undyne, nice outfit! did ya have to give a cooking lesson with it on though?”
Undyne laughed dryly before coughing. “Hi, Sans. I'm glad to see you and your humor are both in good shape.”
“yeah, you and i both. by the way, where’s the human at? do you plan to have an “ultimate showdown for the fate of the world” at your posing rock?”
“Actually, the human is already dead. I killed them before taking their SOUL and tossing their corpse off the bridge that we fought on.”
“oh, i guess stopping them sooner is better than stopping them later, right?”
“No, it didn’t matter one bit. Everyone else who was still in Waterfall was wiped out.” Undyne sat down and lowered her head in shame.
“well look at it this way, even though you were too late for waterfall, the fact you stopped them now means that a lot of monsters in hotland, including alphys, can look forwards to a brighter tomorrow.”
Undyne nodded and then looked up, saying “I guess you’re right, thank you Sans.”
“you’re welcome.” Sans replied. “moving on, i was going to spy on the human and see what they were doing, but since they’re dead, i might as well take you to report that to asgore.”
“Yeah, I guess you’re right again Sans.” Undyne said as she stood up and started walking.
“oh, no need for that.” Sans said. “i have a shortcut.”
A moment later, Undyne and Sans were in the throne room with Asgore, who was currently watering the golden flowers that had overtaken the room. Asgore noticed the pair, and after putting down the watering can, he spoke. “Ah, so you both have finally arrived. This might sound a little out of the blue, but I have a favor to ask both of you. My wife left me a while ago and I don’t know where she is, and even though I think she still hates me, I’m still worried about her. Can you both find her for me?”
Sans paused for a moment, then nodded and said “yeah, i’ll keep an eye socket out for her.” Undyne also nodded. “I will look for her as well.”
”Good,” Asgore said before walking towards his throne and sitting on it. “Oh, I almost forgot, how is the human that fell down here faring?”
“They died by my hand, their corpse rests in a chasm in Waterfall, which is where it belongs.”
”How sad, I was hoping to have a chance to talk things out with them. Undyne, you have the human’s SOUL right? That means we have enough to shatter the barrier to the human realm. Can you please give it to me?”
Undyne started to, but faltered, now deep in thought. “…no.”
This obviously confused Asgore. “Why are you refusing? If this is a joke, please stop with it now.”
Undyne clenched a bloodsoaked fist before saying “I meant what I said Asgore, I’m not going to give you the SOUL. What if there are more humans that turn out to be just like the one that devastated half the Underground? What if they’re even more powerful? Sure the humans might all be good people, and the one that fell here was just an anomaly, but I’m not willing to risk the safety of everyone left in the Underground after that massacre on just hopes and dreams. Sans, you know probably better than anyone how heartless humans can be, they murdered Papyrus without the slightest bit of mercy, when all your brother was trying to do was make them a better person. You probably saw the whole thing, didn’t you? So why should we go up to the surface when we’ll probably all die if we do? The answer is that we shouldn’t, Asgore, I’m putting my foot down.” Undyne stomped the ground, the noise echoed throughout the throne room despite being slightly muffled by the flowers.
“i agree with undyne on this, asgore. I don’t want to lose anyone else, and neither do you, so i think it’s best if we just stay down here and fortify ourselves in case another freak comes through okay?”
Asgore lowered his head, letting shadows obscure his eyes as he summoned his crimson trident. “You will give me the SOUL, Undyne. Even though you might have gotten a lot stronger from the fight with that human, I can still pry that SOUL out of your bloodstained hands, and I will if I have to.” Asgore’s voice resonated with a chill that seemed to freeze the room.
At this, Sans decided to abandon his offensive position and mediate. “woah hey guys, let’s back it up a bit. we’re already low on monsters that are good at fighting, so neither of you should be getting hurt anytime soon in case something terrible happens again.”
“That doesn’t change the fact that everyone in the Underground has been waiting for centuries to shatter that accursed barrier and get to the surface, and Undyne is denying us the salvation we are this close to achieving.”
Sans sighed and said “asgore, i have to show you something. will you both please get over here? i know a shortcut to get there.” After Undyne and Asgore both obliged, all three monsters left.
One shortcut later, the three monsters found themselves on a wide path that drove straight through a forest of pine trees. Snow blanketed the ground everywhere, but nobody felt cold for some reason. It was Asgore that first noticed the door in front of them, and he quickly asked about it. “Why did you take us here, Sans?”
Sans ignored the question and said “undyne, can you open the door with your spears, please?”
Undyne nodded and said “Sure thing, Sans. But I don’t know where you’re going with this, though.”
After they blasted through the door, they walked through the long hallway, marveling at it. When they reached the end of the hallway, Asgore finally spoke. “Woof, this place is ancient, there’s so much dust.” Sans forged ahead, not saying a word. After going through the long hallways, the trio went up the stairs and Asgore gasped when he realized they were in a house. The trio walked around the house, while Undyne was amazed and Sans wore his signature smile, Asgore became more and more depressed with every room they entered. Finally, when they entered the second bedroom, Asgore took one look around and dropped to one knee, sobbing. He looked at Sans and said in a quiet voice. “Correct me if I’m wrong, but this is where the human passed through. Right Sans?”
“i’m afraid you’re right, asgore” Sans said. Asgore stood back up and summoned his trident with a red glint in his eye.
“THE HUMANS WILL PAY. THEY WILL ALL PAY!” He roared with intense fury.
“C-calm down, Asgore” Undyne said, grasping Asgore’s trident. “If you attacked all of the humans at once, they’d slaughter you and all of us!”
“Asgore glared at her and yelled “BUT THEY KILLED MY TORI, THEY MUST PAY FOR THEIR SINS!”
Now Undyne was getting angry. “WOULD YOU RISK THE LIVES OF EVERYONE ALIVE IN THE UNDERGROUND JUST TO KILL A COUPLE OF HUMANS?” Asgore looked at Undyne, who sighed and continued talking. “Look, I know how you feel. If the human had killed my partner, I would’ve sworn eternal vengeance on all humankind just like you did. But since they didn’t do that, I’m able to bring you back to your senses.” Undyne stopped for a moment, then continued talking. “What if we absorb the seven human SOULs that we have to strengthen the Underground against future humans like the one we just saw. You can give a speech about the human and your decision, and with a little luck, the other monsters might just agree with us. What do you say, Asgore?”
Asgore clenched his trident as hard as he could… …before relaxing his grip and slowly nodding, the red glow fading from his eye.
Sans let out a big sigh of relief and said “phew, that was close. I thought you were actually gonna go through and be a bonehead, asgore, no offense.” Awkward silence fell when Sans stopped talking, so he continued, if only to stop the awkwardness. “aaanyway, now that we’ve done what we came here to do, why don’t we go back to the castle and do the thing with the SOULs that undyne talked about.”
Undyne nodded, and Asgore stood up, the shadows lifting from his face. “Yes, that sounds like a plan.”
One shortcut later, the Undyne and Sans were in the throne room and walking to the barrier by themselves, as Asgore wanted to get the SOUL that Undyne had collected into a container, if only to complete the set of seven SOULs that he had worked so hard to acquire. “so are you confident that your plan will work, undyne? i mean, i’m all for it, but do you really think that it’ll work?”
“Yeah~ it’s not like we have any other options…” Undyne said slowly, her voice a little slurred.
Sans became concerned by this and looked over to Undyne. “hey uh, undyne? your face looks a little off and you’re sweating quite a lot, are you okay?”
Undyne looked over to him and said “Actually, now that you mention it…” a part of Undyne’s face started to slough off as she said “No i DoN’t fEEl alL thaT gReat SAnS. I thINK i’M gOnnA SiT dOWN fOr A BIt~” As Undyne sat down, more parts of her body started to melt. Sans ran and used a shortcut to get to the barrier room.
“asgore! undyne is melting! we need to get her a SOUL right now!” Asgore looked over in surprise at Sans as he was running towards him and the human SOULs, then smashed the container that held the yellow SOUL without thinking or caring about which one they picked, and ran back towards Undyne.
By the time Asgore and Sans got back, Undyne was more or less a pile of colored slime, and was rapidly melting away more and more. Asgore shoved the yellow SOUL into Undyne and took multiple steps back. Both monsters watched as Undyne began to not only reform, but change as well: Her eyepatch fell off as the whites of her eyes turned yellow, her hair grew a few inches as it turned yellow at the tips. A cape with a heart embossed on it flowed off of her back, and a yellow halberd with a long spear point appeared in her hands, although the blood from her fight with the human still remained.
“Holee crap.” Undyne said as he laid down flat on her back. “I thought I was going to die there, so thank you both so much. I mean it.” After Undyne stood up and all three took a moment to catch their breath, they all walked to the barrier so that both Sans and Asgore could pick the SOULs that they would use.
As soon as the three monsters were in front of the barrier, Sans, not really giving it much thought, said “eh, the person that had the light blue one was pretty cool.” He then walked over to the light blue SOUL, shattering the container with a bone and absorbing it. Both Asgore and Undyne looked at Sans, expecting a huge change as had happened with Undyne, but all that happened was his jacket became a lighter blue and got much fluffier. Sans was happy with this, as it made him more comfy.
“I guess it’s my turn.” Asgore said, before walking over to the blue SOUL, shattering the container and absorbing the SOUL just like Undyne and Sans did for theirs. Once he did, multiple things about him changed: His horns became bigger and curled a little more at the ends, his crown became bigger and studded with another layer of gems that were all sapphires, his shoulder pads became became spiked, his cape turned a deep blue, and after causing his trident to appear in his hands, Asgore and the others discovered that it was much longer, had a trident’s head on each end, and was now blue.
When he was done, Asgore turned around to face Sans and Undyne, saying “We should select monsters that we trust to absorb the remaining SOULs, I will get the red SOUL, Sans can have the purple one, and Undyne will get the green and orange ones.”
“i only get one candidate to select? cool.” Sans said.
Undyne looked at Sans and said “Well let’s be off, Sans. We should probably stick together so we can pass a fairer judgement.”
Sans shrugged and said “yeah, you’re probably right” and both him and Undyne teleported away.
Once Undyne and Sans were out of the barrier room, Undyne turned to Sans and said “Something weird happened earlier, and I was hoping you might know what it means.”
Sans turned to face Undyne and said “sure thing, undyne. whaddya got for me?”
Undyne looked around before saying “When I killed the human, something informed me that my ‘LOVE increased.’ Do you know what that means, Sans?”
LONG