Undertale
The Human Influence
Rotation 3 Day ?
The Nightmarish Core

The Demon suddenly realizes that the world has been loaded, but he did not absorb any more human souls since last time. He stands up and looks around, noticing that Gaster is gone. The turns his sight to the Worldsoul with a confused look upon his face.

Frisk opens his eyes to view the destroyed Barrier behind him. A large hallway long since eroded by the passage of time, and by the footfalls of countless monsters as they left the Underground. Some monsters still choose to live down here, mostly within New Home and The Core, but it's apparent that this cave has not been used in a long time. He looks at the weapons within his hands. They are capable of extreme violence and power, and could kill even the Demon himself… but the cost of which was the whole world. There has to be another way.

Frisk blasts open another rip in the dimensions and steps throw the cross of light, again ending up on the Worldsoul, where he faces the Demon once more.

"You know, it's frustrating to not realize why you load your game, Frisk. I can only assume that I killed you and that old fool Gaster, and you're returning in a foolhardy attempt to win again." The Demon taunts, flaunting what he thinks is his immortal power, but Frisk merely shakes his head.

"I… I don't know how to stop you."
"Hah, because you know you can't beat my impossible strength?"
"Strength… power… they once meant everything to me, but I have forgotten that they were a means to an end. Chara… the Unseen Influence… it occurs to me that when we reach the end of our journeys and fight who we believe to be our greatest enemies, it never occurs to us to ask why they are doing what they're doing." Frisk says to the Demon, but also to himself. The Demon merely chuckles, waving his knife.

"Isn't it obvious? I want to eradicate human life from the planet and make a universe of my own."
"Then do it."
"You dare taunt me?"
"No, I know you can do it, you've done it before…"
"What?"

"You can destroy the entire planet with nothing more than a hand movement… you also could have killed Gaster… why didn't you?" Frisk asks, curious. The Demon furrows his black brow.

"Does it matter? Perhaps I was simply bored of toying with that skeleton, and having his ashes scatter among the Worldsoul would be annoying." The Demon claims, but Frisk shakes his head.

"No, there's something in you, isn't there?"
"Don't tell me you're trying to imply that there's even a shred of empathy within me?"
"There's something in you… a fascination with us, a fascination with Chara. That's why you keep taking her visage, that's why you left Gaster alive."

"ENOUGH!" The Demon yells out.
"I won't be preached to by you of all people, Frisk. Do you think I felt sorry for Gaster? That I felt mercy or pity for any of you? No. You all disgust me, all of you misbegotten children! Not a single one of you can claim to be the hero of this story, all of you have committed atrocities of your own! Genocides, world destructions, rampant resets, starting wars! I am just an extension of your inner darknesses!"

"That's not true! There is light within us as well! The will to atone for our actions and move forward!"
"How pretentious, Frisk. You of all people have committed more sins than the rest of them combined! Killing all of your friends for boredom, then out of a self-justified crusade to give yourself a happy ending! You make me sick, and hearing you talk turns my stomach! If you're here to fight, I'll be happy to kill you!" The Demon yells, licking his red knife!

"I… I created this world for my friends, not for myself!"
"Lies. You created this world so that you could live within their world and feel good about yourself as the unequivocal good guy! You are a selfish genocidal child, and the fact that anyone would bother to call you their friend would require so many morals to be put aside that the absolute instant I disappeared you would consider yourself an uncheckable god who could do no wrong! What I seek is nothing more than the Yin to your vastly overproportionate Yang."

"Now who is the one claiming to do good while hiding behind their selfish desires?! You are jealous of our emotions, admit it! This entire quest of yours is just to become human for even a second! You're envious of our ability to become good or evil people, instead of being a blank caricature with no control over their destiny, like you used to be!"

"So is this all you want, Frisk? To come into the darkness of the Worldsoul to engage me in an insulting battle instead of a physical one? I've horribly misjudged you. You're not just disgusting, you're a weakling and a false prophet." The Demon spits. Frisk shakes his head.

"No. I may not be perfect, I may not be innocent, but I'm seeking to atone for what I've done, Demon. This soul is proof of that." Frisk says, his white soul fluttering forward, catching the Demon's eye.

"I will admit that has had me curious for a small while. Where did you even get that?"
"You wouldn't remember. A long time ago, before the world was remade, Chara stole my red soul, as you planned. After I died, my friends, all of the monsters that traveled with me on that journey, pulled their emotions and hearts together to form this, a temporary soul. They gave it to me, and from within it is a wellspring of monster and human determination. After you killed me up there… I was given this soul."

"By who? Who could have possibly owned that soul since then?"
"The original Frisk."
"What…? What do you mean?" The Demon asks, cocking his head.
"When the world was rewritten, the Unseen Influence forced a copy of Frisk into this world and controlled my mind."
"Yes… I remember that."
"It was at that exact moment that the original Frisk, the one who with a heavy guilt ridden heart had to kill his friends to gain the power to save the world, was locked within a far off abyss with no hope of escape."

"Then… how?"
"I don't know. After I died, I floated on the main screen for hours, desperately hoping to not have to reload my game, since you would just explode out of the Worldsoul and kill everyone, but maybe it was fate, dumb luck, or maybe he knew I would be there… but the original Frisk found me caught in between worlds. He sacrificed his own life to give me this soul, and that's how I stand before you, immune to your powers."

"Immune to my powers… huh… I had a feeling from the way you were standing, and looking at me, that our battle ended differently than I originally thought. You killed me, didn't you?"
"I did."
"Hah, but I took the whole world with me…"
"You did…"
"Then we're at an impasse. You know I hold all the cards, and there's no possible way you can beat me without this world being destroyed." The Demon laughs, crossing his arms.

"That's why I've come here." Frisk says, putting away his weapons, causing them to fizzle into light and making the Demon raise an eyebrow.

"I've come to ask what you want."
"I already told you what I want."
"That's a lie and we both know it. What do you REALLY want?"
"How are you so sure it's a lie? I've destroyed this world three times already. Why wouldn't I want to destroy it a fourth or fifth time?"

"Because this isn't like the first or second times anymore, I can see it in your eyes." Frisk says, looking at the Demon's blood red eyes. But behind them is a carbon copy of Chara's eyes. Frisk will never forget what those eyes look like. The Demon uncrosses their arms and shrugs.

"I suppose the new prophesy wasn't true, huh? I got all worked up for nothing. I was dreading you being the angel foretold, but I guess I was wrong. If all you're going to do here is try to convince me to stop being "the bad guy" then I have bad news for you Frisk, there's nothing you could say to possibly steer me from this path… and as I said-" The Demon says, holding a blue and green ball of energy in his hands. Frisk cringes upon seeing it.

"I have all the cards."
"But this isn't what you want! If it was, you would just destroy the world right now!"
"… Don't look into things that don't exist, Frisk. I simply hold this for leverage against you."
"No! You didn't kill Gaster either, why?! You may lie to me, but don't lie to yourself!"
"I have no idea what-"
"You don't actually know, do you? These new emotions you're feeling, human emotions, they're confusing you, aren't they?" Frisk interrogates, the Demon closes their eyes and smiles. Their pitch-black skin slightly broken up by the pale skin of what was once Chara.

"I… will admit. The Human Influence upon me has taken a more powerful toll than I would have liked. Idle curiosity turned to obsession… you would be right in a way, I was jealous of you humans, but I don't envy you, not anymore. These emotional turmoils, the willingness to commit murders and laugh about it, they are emotions I have felt before, but to want to connect yourself to people… only to tear their lives out… that perverted sentimentality, I finally understand it… and I've never wanted to be human more in my life than right now." The Demon admits, stabbing their knife into the Worldsoul, causing it to crack slightly.

"What? What was that for?" Frisk asks.
"You were right, about one thing Frisk. I didn't just leave Gaster alive for no good reason. Though I don't remember sparing him, I can remember getting the thought a while ago. One day after he pinned me to the Worldsoul, disconnected from the other fourteen billion souls, my willingness to tear his skull from his head… faded."

"So you're saying you've changed?"
"Frisk, I will not change my mind here." The Demon says, the Worldsoul beginning to crack more and more!

"N-No, what are you doing?!"
"A trick I thought of a while ago. The Worldsoul is already broken, it's time to remove it."
"But… but then this whole world, you, and I…"
"I of course have a plan for that, and once this existence ends, the fourteen billion souls I already have will form into a NEW Worldsoul! A better one, under my complete and total control!"

"So… that's what you wanted all of the human souls for…"
"I was going to wait for twenty-one billion, but I'm sure this is enough."
"D-Damn it…!"
"And don't think about escaping to your old save file. Once this Worldsoul is gone, it's gone for good. If you sought to convince me to change my ways, Frisk, I must admit, you've lost your touch. A murderer makes for a poor negotiator. There was never a chance for peace." The Demon states, jumping into the darkness as the Worldsoul completely collapses into the Nightmare!

Frisk once again floats in limbo… completely in shock. He looks down at his white soul with a faint rainbow coloration behind it.

"Sorry, guys… guess I'm just not qualified for this anymore. He's right… after everything I've been through, I'm not a pacifist anymore... I'm merely a killer who erased his past and expected the world to move on."

"Don't say such things, my child!" A familiar voice lets out. Frisk turns around within the nightmare to see Toriel here as well.

"T-Toriel? What are you doing here?"
"I could feel you… I could feel your heart even across this darkness, so I came here."
"Toriel… I can't do it. I can't fight him, and I can't get him to accept my mercy either… he's going to erase all of existence once his Worldsoul is complete…"

"Frisk, my child… I heard your entire speech with the Demon before the Worldsoul collapsed… we all did. I heard about your willingness to atone for the things you've done, but you must remember that we, your friends, have supported you since the beginning. We all felt the pain within the world and, in the end, we were all honored to be a part of your journey. We all knew you could do the right thing."

"That wasn't me, Toriel… that was someone else."
"You are my child, and you always have been. Living within my home, playing with my son, growing up and being happy to see everyone safe… you ARE Frisk, Frisk!" Toriel says, but Frisk merely shakes his head and looks down.

"Human!" Papyrus's voice lets out from behind Toriel.
"I knew it was you! I felt your soul from even here! Nyeh!"
"Papyrus, you too, huh? I'm sorry, but I don't think I can fix this. Not this time."
"Frisk, you have spent so much time relying on your own strength, let us help you with this burden. You do not have to face this nightmare alone."

They all look to the edge of the Nightmare, seeing the billions of humans souls flushing into it in a flash of human energy.

"The New Worldsoul will soon be complete… what can we even do against that?" Frisk asks, but Toriel shakes her head.
"Frisk, we've seen you defy the impossible…" She says before Papyrus butts in-
"At least three different times!" He chatters! To Frisk's surprise, all of his other friends seem to be slowly floating towards him as well.

"Huh? Asgore? Sans? Chara? Asriel? How did you all find us? Isn't the New Worldsoul sucking everything in?"
"No, your light guided us to you, it shines brighter than that." Asriel says.
"Frisk, my son… you have sacrificed so much for my people, my people who sought to harm you… I will not let all of our hopes and dreams… mine as well as yours, monster as well as human… fall before this Demon. We stand with you, Frisk." Asgore preaches, saluting Frisk by clapping his fist to his chest.

"You guys…" Frisk diverts his eyes, but Sans floats over.
"Kiddo… I know what you're thinkin' and I know what you want… I know how you feel, about everything. Everything you've done, everything you haven't done… and I understand. But you taught me to never give up. I gave up a long time ago, and you saw what happened… No, not anymore, kid… Frisk? Let's give him hell."

Before long, Clover floats over too. Both he and Frisk look to the white light within the Nightmare, growing bigger and bigger. Soon the New Worldsoul will be complete, and at the center of it, controlling everything… will be the Demon.

"We all have our pasts, Frisk. We all have things we regret, things we wish we could change. Maybe it was something we did, maybe it was something about ourselves… but we play with the cards we're dealt. One of the prime rules of Justice is that you can't go backwards, you can only march forward. After this is over… you can come to me. You can tell me what's bothering you, and we can fix it… together."

"Th-Thanks, Clover… I'd… I'd like that." Frisk says with a guilty smile. Frisk wipes his eyes and looks around.

"Wait? Where's Chara?" Frisk asks, and everyone looks around. She's not here. Gaster floats forward and explains.
"The Demon has expressed intense desire to become Chara over this event… perhaps…" He says, causing Frisk to gasp.

"Guys… I think the Demon has Chara. I… I think we have to go. It's now or never." Frisk says. They all nod.

Frisk and all of his friends begins to slowly float towards the almost finished New Worldsoul. It's… so big!

They land on the bottom tip of it, the bottom of the heart shaped core of the world. It's solid white, completely the opposite of the black Nightmare they've come to know. They look over to see that the Worldsoul is so big that it has its own horizon, and at the end of it they can see the last bits of the human souls, maybe less than 500 million left, combining within the New Worldsoul. It will be done within the hour…

Frisk and all of his friends run across the Worldsoul, making impressive speed before arriving at the middle of it, and at its center are two people. One of which is Chara, passed out and on the white floor of the New Worldsoul. The other is the Demon, who himself has also undergone a new transformation.

With skin as white as snow, the Demon looks back at them, their eyes still bright red, but only within the iris.

"Welcome."
"What the…? Your… voice… are you the same-"
"Demon? Yes. This is what it feels like to be human, I guess." The "Demon" lets out. He looks down at himself. He has short white hair and within his hand is a solid white heart. Unlike Frisk's which pulsates a slight rainbow color, this person's human soul is completely white with no blemishes anywhere. He wears what appears to be a suit along with his pale skin and red eyes, his stance is also quite austere.

"Then… will you stop this? Are you not evil anymore?" Frisk asks. The man before him merely chuckles.
"I don't think you fully understand me. At first I thought I wanted to be Chara… but now… I am my own human now. Like you, I have defied the will of this world and become something I am not… I can feel my heart beating… it's… such a strange feeling." He says, looking over to Frisk after coddling his own white heart.

"You may call me Demon. And no, I will not stop. The Worldsoul is almost done, and soon I will ascend this existence to a heavenly state, one without you impurities messing it up."

"So even after all this time, even after you got what you wanted, you're still not satisfied?!"
"Like you're one to talk, Frisk. Who was it that committed genocides even after getting their happy ending?"
"That's…"
"And I'm not just talking about Undertale, I'm talking about your new world! How weak you were to so easily go back on your morals, and then be so fragile of heart to become controlled by another human being, and the worst part is you play yourself off as the hero! Even though this is ALL. YOUR. FAULT." Demon says, stomping forward, causing the New Worldsoul to quake, shaking Frisk and his friends! But his friends rush forward and snarl at Demon.

"My child may not be innocent, but neither are any of us… I abandoned my kingdom when it needed me most, and scorned my husband a criminal though it was I who let the children into the underground to die without helping them… if anyone is to blame, it's me!" Toriel says emphatically!

"No, Tori, it was me, it was always me. I was the king, and with you at my side I made a terrible mistake… declaring war on humanity again was the worst decision I ever made, and I knew deep down it would never bring Asriel or Chara back… but in my cowardice, I feebly hoped no humans would ever fall again… but Frisk…" Sans shakes his head and steps forward.

"Chill, king. Look, let me get real. The problem here wasn't Toriel, Asgore, or even Frisk… it was me. I never took my job seriously and it caused a lot of problems to arise. I was so sure that Frisk was the anomaly that I never trusted him. I never helped him out when he needed it, and if I just stopped him earlier during those Genocides, maybe this would have never happened…" He says, looking down, but Papyrus claps a hand on his shoulder.

"No, brother. We could all smell the taint upon Frisk. It wasn't him, and it wasn't even Chara, it was the Unseen Influence. They drove Frisk to that madness in a desperate attempt to find a happy ending that never existed. But it was that desire, that desire to destroy anything so that you may create something greater… it was that desire that created our world. Blame… Blame is such a harsh word, when we should be reveling in the fact that despite it all, we still live, breathe, and laugh… now with ALL of our loved ones." Papyrus says, looking to Gaster, Asriel, and Chara upon the ground. Gaster smiles.

"Papyrus is right. My old friend Roman may be gone, but his infinite wisdom and kindness live on through them. Maybe… maybe we all have a demon inside of us, a demon that we're afraid to confront, because we've convinced ourselves that the ends justify the means, but here we stand, at the center of everything. The entire future, all the universe depends on what we do right here, right now. This is OUR world!" Clover draws his pistols and nods, stepping forward aside Frisk.

"In the end, we all meet our maker. Every sin, every transgression, they will be met with pure Justice… but humans are flawed, as are monsters. We are not gods or demons, we are capable of incredible acts of compassion, and horrible acts of cruelty. In the end, we are not truly fit to judge each other, but if you feel… deep down in your heart… there is a single truth within all of us. A darkness, AND a light, both that require balance. Sometimes killing can become a beautiful thing, to cleanse this world of a murderous pox, but most of the time… the most justifiable thing to do is to simply lower your weapon. Demon… what world do you want?" Clover, the last of Frisk's nearby friends asks and they all turn to Demon for his answer. Before he can answer, Asriel steps forward.

"The things I've done... I don't ever want to remember them again, but they are a part of who I am now. And... And Frisk forgives me, my friends forgive me too, even after everything I did... I'm... I'm sure at the end of it, Demon... maybe there's even a place for you." As Asriel says that, Demon crosses his arms.

"What I want… is… is…" Demon says, trailing off and shaking his head.
"I… cannot accept your ruling. None of you. What I have done in the past is too great. The ends will never justify the means in this situation. Billions of humans and monsters, all killed to create this. This will be my new world, a world of nothing except me." Demon says, turning back and observing the last 100 million human souls combine into the New Worldsoul. Clover growls and runs forward!

"You can't mean that! You can't honestly expect to be happy in a world of nothing!"
"And what, you would just let me go? After everything I did? If I were to stop this now, and let you all go free… you would forgive me?"
"…" Clover continues to eye Demon.
"Hah… I thought so."
"Clover…" Frisk lets out, but Clover shakes his head.
"I can't, Frisk. It's not in my nature. After all of the sick, twisted things he's done… he deserves to die." Clover says, almost seemingly incapable of lying. Frisk sighs and steps forward, dangerously close to Demon, who turns around. His friends tense up, preparing for a fight.

"Demon… I forgive you." Frisk says, to everyone's astonishment.

"FRISK?!"
"Kid…?!"
"My child…"

"Hah, what is that supposed to be, an empty gesture? I do not care for your mercy, I already told you."
"No… it's… it's not my mercy we should want."
"Oh? Then what?"
"It's… your mercy." Frisk says, summoning his sword, WORLDSOUL.

*WORLDSOUL
*ATK 0
*With the Worldsoul's destruction, this blade is a powerless husk that can barely keep its form.

"What is this? What are you doing?" Demon asks, Frisk gives him WORLDSOUL.
"Please. I am so tired of fighting. I am so tired of justifying everything I've done in the past just so that I can sleep at night. If you're going to kill us, then just do it, but please don't torture us anymore." Frisk says with closed, tired eyes. Demon can make out a few tears falling from his face. Demon only laughs.

"Begging for mercy? A quick death? You're pathetic, you know that?" Demon lets out, pushing Frisk into his friends' arms and throwing WORLDSOUL at them, having it impale the ground at Clover's feet!

"Why you…!" Clover growls, drawing his weapons!

"But maybe Frisk was right, about one thing at least. I think it's time I stopped messing around." Demon says, his white hair starting to flow ominously! He begins to float from the base of the New Worldsoul and he looks down at them all, the back of his suit exploding off as angelic wings splay out!

"I'm not a Demon anymore, and from my human frame… I have become… a God. Now, I will scatter you all from my realm, and there's not a single thing any of you can do to stop it!"

Author's Note: I'm rehosting the Unseen Influence Trilogy on account of my patron vanishing. This story will be deleted if he ever returns. Until then, enjoy yourself.