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Story cover for FCOR (Nightkiller) by helpme1m

FCOR (Nightkiller)

Reads 11,193
Votes 417
Parts 44
Time 3h 51m

Reads 11,193
Votes 417
Parts 44
Time 3h 51m

Mature

angst colorkill cream crossxdream drama dustberry murderxswap nightkiller nightmaresansxkillersans nightmarexkiller outerkill sanscest sequel undertale

!!!CRINGE WARNING!!!

After Nightmare and Killer's canceled wedding, Killer left Nightmare to go live with Color but for reasons that you might or might have not expected, but Nightmare tries to get Killer back. After trials and errors, they managed to be eachother's lovers once more but I don't think that their son wants that.

(This is the OFFICIAL sequel of ATGFAH 2)

The cover pic belongs to me :)All Rights Reserved

angst colorkill cream crossxdream drama dustberry murderxswap nightkiller nightmaresansxkillersans nightmarexkiller outerkill sanscest sequel undertale

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44 parts

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"Twisted Faith"(Ink x Nightmare/Inkmare Fanfic) by Full0fRegrets

First of all,cover art credits to the rightful owner Ok another Inkmare Fanfic again(cuz I wanted to) The bad guys kidnapped Ink and they started torturing him,the remaining Star Sanses can't do anything to save their leader......but weeks later(I guess) everything changed... Positive feelings grew from the King of Nightmares... Everything seemed to be okay now and that's what the guardian of negativity says. Until one day.... Ink suddenly got an unknown illness.. Will they find a cure for Ink's disease? (well,let's find out!) Story Contains: Swear Abuse Self-Harm Angst and some other ships in this book |Date Started:06/24/21| |Date Ended:07/24/21|

Given An Unwanted Second Chance by UndertaleFanatic981

(TW: unaliving thoughts and memories at the beginning. It gets better over time, don't worry! Trauma is difficult to overcome...) You didn't want a second chance. You didn't want to survive. You wanted the sweet release of death. But it seemed like the universe was far too cruel to allow you even that. It took away your memories, your free will to choose whether you live or die...hell, it took the one thing in life you owned! Your own name! And now it seemed like you had to live yet another cruel life, doing things you never wanted done to others. But...at least you could do things your way. Maybe this second chance wouldn't be so bad... (Reincarnated as Nightmare Sans, but unlike other stories, you have no clue what Undertale even is) (WE REACHED NUMBER 1 IN THE UNDERTALE TAG YOOOOOOOO) (9/13/25)

To Kill A Killer by RoseAurum

Nightmare's gang always knew that their job was risky, but they never expected to actually die. Then Killer was killed. Nightmare found a replacement quickly enough, but this new Killer isn't the same as the old one, and the gang are having a hard time adjusting. Inspired by a comic by darkxsoulzyxcaliberx. Something New belongs to rahafwabas. Dusttale belongs to Ask-Dusttale. Dreamtale belongs to Joku. Horrortale belongs to Sour-Apple-Studios. Xtale and Underverse belong to Jakei. Underswap belongs to p0pcornPr1nce/the Undertale AU community. Ink!Sans belongs to Comyet. Any other characters and AUs mentioned belong to their original creators. All art by me. A huge thank you to my partner for beta-reading.

The Protecter And The Protected [Mythoverse] by Pest0zSauce

"Long ago, the Ebott kingdom was known for many things: Being the largest kingdom in the land, being the only remaining kingdom that was monster-free, as well as starting the monster vs humans war, and of course, there were other less important things. But now, the Ebott kingdom was known for one thing, its beast, and also the war it started but that wasn't important now," Or, Dream, having just woken up from a coma not to long ago, realizes how dangerous this new world is, so, he decides that there's no better way to ensure his safety then taming the blood-thirsty beast of Ebott and keeping it as a pet, that can't be too far fetched, right? The first story in the MythoVerse series

The King's Queen (Nightmare Sans x Reader) by ReapingZen

PLEASE READ BEFORE GETTING INTO THE STORY Description: Your name is (Y/n) and you are originally from an au called Dreamtale! Your life hadn't been the easiest however, but you were quick to always move forward despite this... Before Nightmare had become corrupted, you were his best friend and lover. You kept him from his breaking point, you maintained his sanity and most importantly... returned his love. One thing that is definitely important about yourself is that you are a selective mute... And your only desired partner for conversation is the King of Negativity himself... But what will happen once the true evil lurking within your lover drowns out whatever light he had left? What will happen when you discover that the Nightmare you knew was replaced by a monster that still somehow holds love for you? "And even with the evil finally in control of Nightmare, if both his sinister side and his old self agreed on something- then it would always be his priority... They both love her." This is practically my first story that I have ever decided to share online. It is quite a terrifying experience for me, so I hope that anyone who decides to read this will enjoy it. Anyway, I should probably inform my readers about a few things. First off, my primary language is not English, however, I will still be making an effort with my grammar! Second off, I will try and update this as frequently as possible... Even though I can get somewhat shy or concerned about how my work goes. Otherwise, all you will need to know is this: (Y/n): Your name (F/n): Friend name (E/c): Eye color (H/l): Hair Length (H/c): Hair color (S/c): Skin color (F/c): Favorite color Some things I will likely determine for the reader, but what is posted above will be the basics. Please also note that this story may contain some content that would be best for more mature audiences. Also, the cover image belongs to me, please do not use it without permission or steal it.

liaison 🩹 by TheSparkles_

𝐍𝐢𝐠𝐡𝐭𝐦𝐚𝐫𝐞 𝐡𝐚𝐬 𝐠𝐫𝐨𝐰𝐧 𝐢𝐧𝐬𝐚𝐧𝐞. 𝐇𝐞 𝐧𝐨 𝐥𝐨𝐧𝐠𝐞𝐫 𝐞𝐱𝐢𝐬𝐭𝐬. 𝐈𝐭 𝐜𝐚𝐮𝐬𝐞𝐬 𝐦𝐚𝐧𝐲 𝐭𝐨 𝐟𝐞𝐞𝐥 𝐞𝐦𝐩𝐭𝐲 𝐚𝐧𝐝 𝐥𝐢𝐭𝐭𝐥𝐞 𝐦𝐨𝐧𝐬𝐭𝐞𝐫𝐬 𝐚𝐫𝐨𝐮𝐧𝐝 𝐭𝐡𝐞 𝐦𝐮𝐥𝐭𝐢𝐯𝐞𝐫𝐬𝐞. 𝐈𝐭 𝐢𝐬 𝐝𝐫𝐞𝐚𝐦𝐬 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐨 𝐭𝐚𝐤𝐞 𝐜𝐚𝐫𝐞 𝐨𝐟 𝐭𝐡𝐞𝐦. 𝐈𝐧 𝐭𝐡𝐞 𝐩𝐫𝐨𝐜𝐞𝐬𝐬 𝐭𝐡𝐨𝐮𝐠𝐡, 𝐂𝐫𝐨𝐬𝐬 𝐛𝐞𝐜𝐨𝐦𝐞𝐬 𝐜𝐨𝐧𝐜𝐞𝐫𝐧𝐞𝐝 𝐚𝐧𝐝 𝐰𝐨𝐫𝐤𝐬 𝐚𝐥𝐨𝐧𝐠 𝐬𝐢𝐝𝐞 𝐝𝐫𝐞𝐚𝐦. 𝐇𝐞 𝐬𝐭𝐚𝐫𝐭𝐬 𝐭𝐨 𝐠𝐫𝐨𝐰 𝐟𝐞𝐞𝐥𝐢𝐧𝐠𝐬 𝐟𝐨𝐫 𝐝𝐫𝐞𝐚𝐦 𝐭𝐚𝐤𝐢𝐧𝐠 𝐡𝐢𝐦 𝐚 𝐰𝐡𝐢𝐥𝐞 𝐭𝐨 𝐜𝐨𝐧𝐟𝐞𝐬𝐬.. 𝐀𝐥𝐨𝐧𝐠 𝐬𝐢𝐝𝐞 𝐨𝐭𝐡𝐞𝐫 𝐜𝐨𝐮𝐧𝐭𝐞𝐫𝐩𝐚𝐫𝐭𝐬 𝐭𝐡𝐞 𝐬𝐭𝐨𝐫𝐲 𝐛𝐞𝐠𝐢𝐧𝐬 𝐭𝐨 𝐠𝐞𝐭 𝐛𝐞𝐭𝐭𝐞𝐫, 𝐛𝐮𝐭 𝐚𝐥𝐬𝐨 𝐚 𝐥𝐨𝐭 𝐰𝐨𝐫𝐬𝐞. ✦ THIS STORY HAS TRIGGERING TOPICS SUCH AS DEPRESSION AND SUICIDAL THOUGHTS !! IF YOUR SENSITIVE TO THOSE TOPICS I SUGGEST NOT READING !! ✦ART IS MINE

"Bullseye" A Killermare story by Tornado346

Killer is a sans, and so is the rest of his crew. They call themselves "The Bad Sanses." They've all had one goal at some point in time, revenge. However, Killer is a unique specimen. He is an emotionless being. He feels nothing and nothing only. No remorse. No happiness. No mercy. All he knows is "kill," and that's how it's been for long time. However, one day he comes across a new particular type of Sans. A very colorful one. He feels something he hasn't felt for years. Freedom. Once Nightmare finds out, it's not pretty. Killer was his most loyal worker. So he decided he had to end this "friendship." The question Killer asks is, why? "Why do you need me to feel nothing? Why do you want me to be a part of your crew? You always tell me how useless I am. If I'm so useless, why do you need me?" Nightmare couldn't give him an answer. But, maybe, for once in his life, Nightmare feels something for only Killer that isn't so negative. 🎨COVER ART🎨 COVER ART WAS NOT CREATED BY ME, I REPEAT, NOT CREATED BY ME ART WAS CREATED BY pecil(BB) or @mm_loves_pencil ON TWITTER SUPER FREAKING TALENTED CHECK IT OUT!!!! ⚠️Warning⚠️ This fanfic is a little toxic. I tried making everything as possible, which is why I'm putting this warning. However, after writing this entire story, I realize some things are more fanon than canon. Nonetheless, serious angst goes down in the fanfic, so be warned. Contains: Heavy language Sensitive topics (such as abuse, trauma, and depression) Angst Smut (maybe, I'm still deciding) Graphic scenes containing gore -if any of the following bother you, I highly suggest not reading this fanfic- |you have been warned, so don't come at me if you don't like it| I promise it all ends on a good note. I can't personally stand depressing endings. So don't worry. But hey, enjoy your overdose on Killermare. 🤷♀️

I Found You My Dear Inkmare fanfic by Squid_1928

When Ink is exploring the au's, he stumbles upon a new au where he meets a new friend named Nightmare. The both of them create a close bond, and Nightmare explains how the villagers mistreats him and how they treasure Dream. Ink knew Dream for awhile, but Dream never mentions Nightmare. One day Nightmare had enough of the villagers and ate the apple of negativity and leaves Dreamtale empty. When Ink comes to visit Nightmare, he sees that everyone is disappeared, and so did Nightmare. Not mention Dreams new and unusual behaviour towards Ink. [All artworks in this story, including the cover, belong to me. I kindly ask that you DO NOT use them, post them, trace/edit them, or claim them as yours. It's rude and highly frowned upon. Thank you.]

"𝗟𝗼𝘃𝗮𝗯𝗹𝗲 𝗖𝗼𝗻𝗳𝗶𝗱𝗮𝗻𝘁𝘀"(ErrorInkMare) by Full0fRegrets

Welp...here it is ꧁•••••꧂ One day...Ink was being reported as a murderer Ink always denying that he didn't killed his two best friends that was Dream and Blue,...or is he actually telling the truth? Well,he was being sent in the Asylum because the others think that he was now being crazy Error and Nightmare was figuring out the truth themselves instead of believing the one who witnessed Ink killing his two bestfriends '3 𝒅𝒂𝒚𝒔 𝒍𝒆𝒇𝒕 𝒃𝒆𝒇𝒐𝒓𝒆 𝑰𝒏𝒌 𝒘𝒊𝒍𝒍 𝒃𝒆 𝒆𝒙𝒆𝒄𝒖𝒕𝒆𝒅...' Also...which one Ink would chose to be with him forever? Is it Error or Nightmare? Maybe both? Let's find out! Story Contains: Swearing/Cursing words Angst Other mature content ♡︎♡︎♡︎♡︎♡︎ Cover by me |Date Started:10/20/21| |Date Ended:12/13/21|

Homey by coppermeadows

A Killer x Nightmare story. Completed✔️ Rewriting. After killing everyone within his timeline, a mysterious figure appears in his house, permanently changing his life. He offers Killer a position on his team of murderers, only for a certain someone to prey on the newest recruit. As Killer slowly starts to unravel the truth, he finds himself developing feelings for the very man who landed him in this entire situation and changing the group for the better along the way. Trigger Warnings: Depersonalization, derealization, depression, intrusive thoughts, manipulation, anxiety attacks, anxiety, self-depricating thoughts, mentions of suicide,(descriptive) gore, torture, and death. NightKiller Killermare NightKill Human universe. Medium burn. No sin/smut. The cover is drawn by me.

ˣ𝓘 𝓬𝓪𝓷𝓽 𝓱𝓮𝓵𝓹 𝓱𝓸𝔀 𝓘 𝓯𝓮𝓮𝓵!ˣ nightkiller (Discontinued) by KiiroKrovea

This is my first sans au story! So it might be a bit... cringe.. ANYWAY- warnings: •mentions of self harm •lemons (sexual stuff) •mentions of rape or sexual assault •abuse So killer has a crush on nightmare, but doesn't feel as though nightmare like killer, but everything changes once killer starts to get sexually harassed when spying on the star sans, and nightmare notices it.. sometime and helps killer also I don't own the cover #1 in Sansaus!! (September 24 2022) #2 In dross ! (September 24 2022)

Criminal Boundaries (An Undertale Sanscest Story) by __Purple_Fluffball__

Sequel to Criminal Conflict! It had been nine years since the criminal gang last met up and did anything illegal. They'd planned on never really seeing each other again, keeping contact to a minimal. But as a new threat appears, a monster after all of their kids, the chances of reuniting goes up as the gang join up once more to 'save the day'. Cover credit: me

Nightkiller by Underswap_nerd666

....Not all storys have happy endings.... Ships: DustHorror Inkerror Killermare Cream Lustberry-ish

Reborn of balance by Hajnalszinei

The idea was originally found in A_Bored_Reader Undertale ideas for stories that hit me like the brick called Reborn! I asked permission to use it. Read the original if you're interested, but it contains quite a few spoilers for this story. https://www.wattpad.com/977277228-undertale-ideas-for-stories-that-hit-me-like-a Fate got tired of game that own and decided to start a new one. This battle was bloodier and more serious than ever and the Bad Sans were at a loss. Nightmare sacrificed himself so the rest of Bad Sans can escape. Error was the only one, who stubbornly refused this and fight whit him to the very end, in the hope that both of them would be able to leave alive. It's been a while since then. Ink and Dream got together and had a child Palette Roller. And the thing is, Nightmare was reborn as Palette. Fate laughs at him. The new fun no doubt has begun! How does Nightmare handle the new situation? What about the other Bad Sans? Error? What will happen to the world? The balance? Will Nightmare be left alone? Or will there be those, who stand by him in his fight with Fate? Character belongs to their respectful owners. Error made by Crayon Queen Nightmare made by Jokublog Dream made by Jokublog Ink!Sans created by Comyet UnderSwap made by P0pc0rnPr1nce Geno made by Crayon Queen Reaper-Renrick Fate-harrish6 Palette-Angexci Goth-Nekophy Killer Sans is created and owned by Rahafwabas Horror created by Sour-Apple-Studios Dust made by Ask-DustTale Cross XTale made by Jakei95 The personalities of the characters do not match those of the original character. There's a balance in it and Fate, but not fully FGod. Warnings: Cussing, Manipulation, Dark-bloody past. Mention of violence, abuse, characters death. Ships you may not like. The images I used belongs to their own creator. The cover image as well, I just edited it a bit.

We're leaving this city.. (human sans aus/ Zombie apocalypse) by Dark_moon983

This is a story of a Zombie apocalypse which the sans au's go through, following in the perspective of either nightmare, Error or a third person dream. They're trying to leave the dangerous city that they called 'safety and opportunity', many shall not leave, others may be lost out of boarder. First story written! Also not good, new updated version. A group of scientists - kind of including Science but since he's amazing it's not his fault... - made a special completely confusing disease that involved in the death of the brain but not the body. They are separated into different ways of their lives(?) The bite to eat and the bite of create. One is to feed themselves the other is to carry on their quickly spreading disease. My art as the cover! Yes it is definitely not the best but it's not the worst! Characters are sans aus (sorry if it's incorrect or spelt wrong!): Nightmare/dream - Joku Killer - Rahafwabas Error - Crayon Queen Dust - Ask-Dusttale Horror - sourapplestudios Blue - P0pcornPr1nce Ink - Comyet Ccino - (no clue) Red - under community(?) Reaper - Ren Geno - Crayon Queen ⚠️Warning ⚠️ Not finished Bad detail Gore Character deaths

Once Upon Two Princes by CntCntrlThsAlt

A remake of 'Once Upon Two Princesses'. When Dream and Nightmare find themselves locked away in a mysterious tower, they begin to worry. Dream is content waiting for a handsome man in shining armor to be his Prince Charming and save him, but his brother is the opposite. Nightmare takes things into his own hands, wanting to get them out of there before anything worse happens. Little do the princes know what would be waiting for them in the forest. Trigger warnings: Abusive family dynamics Body mutilation Codependent relationships Depictions of death and murder Drugging Enforced gender roles and heteronormativity Explicit homophobia Internalized homophobia Kidnapping Mentions and depictions of child abuse (verbal and physical) Mommy issues Themes of sexual abuse and sexual assault Use of homophobic slurs Violence Violent threats Read at your own risk.

Nightkiller One-Shots [Song-Based] by ethereale-luna

Killer Sans by Rahafwabas | Nightmare by Jokublog - COVER ART BY ME; DO NOT REPOST OR REUSE.

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Slide 1 of 17

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The Protecter And The Protected [Mythoverse] cover

The King's Queen (Nightmare Sans x Reader) cover

liaison 🩹 cover

"Bullseye" A Killermare story cover

I Found You My Dear Inkmare fanfic cover

"𝗟𝗼𝘃𝗮𝗯𝗹𝗲 𝗖𝗼𝗻𝗳𝗶𝗱𝗮𝗻𝘁𝘀"(ErrorInkMare) cover

ˣ𝓘 𝓬𝓪𝓷𝓽 𝓱𝓮𝓵𝓹 𝓱𝓸𝔀 𝓘 𝓯𝓮𝓮𝓵!ˣ nightkiller (Discontinued) cover

Criminal Boundaries (An Undertale Sanscest Story) cover

Nightkiller cover

Reborn of balance cover

We're leaving this city.. (human sans aus/ Zombie apocalypse) cover

Once Upon Two Princes cover

Nightkiller One-Shots [Song-Based] cover

"Twisted Faith"(Ink x Nightmare/Inkmare Fanfic)

First of all,cover art credits to the rightful owner Ok another Inkmare Fanfic again(cuz I wanted to) The bad guys kidnapped Ink and they started torturing him,the remaining Star Sanses can't do anything to save their leader......but weeks later(I guess) everything changed... Positive feelings grew from the King of Nightmares... Everything seemed to be okay now and that's what the guardian of negativity says. Until one day.... Ink suddenly got an unknown illness.. Will they find a cure for Ink's disease? (well,let's find out!) Story Contains: Swear Abuse Self-Harm Angst and some other ships in this book |Date Started:06/24/21| |Date Ended:07/24/21|