Nightkiller Stories

The bad sanses and the stars were fighting for many years.Now..it's the time to stop these useless battles and make a treaty for the two team. Both of the team...

Just read, by the title you know what this story is about.. unless you don't know who these characters are, then you will be very confused

Killer, a sans who's mind has gone completely, and with his "friend" destroyed an entire au, only to find out the backstabbing truth! And soon later finds a fu...

Killer ends up in a small trouble, I said small? I don't think having a baby of the Nightmare is just a little problem. How will killer solve this? Will he be able to hi...

The Guardian King of negativity? In love? Wow, that's a laugh! (*obviously cover art isn't mine, btw*)

Some silly lil one shot about the one and only Killermare ship! Human au (only in certain chapter) Contains : violence (?) Strong language Lemon

this book was fanmade/inpired by @multi_ship_join all credits go to them (i dont know their pronouns TT) and yes i have full permission to use this idea.

This is a recreation of my first Nightmare X Killer story I made back in 2020. I will be changing quite a few aspects of the original story but I will keep the NightKill...

Hi~! Welcome to my small book of Killermare fluff one-shots! These will mainly be short, sweet interactions between the two, and there won't be anything past fluff! Wit...

Been gone for so long I forgot how to spell... Holy fuck anyway Nightmare and killer fuck, while dream and cross fuck. In the next room of course-

Making a deal with the rudest man alive was never just a choice but a commitment, living in poverty made him hand his fate to someone else. Despite wanting his highschoo...

Error, God of Destruction, feared by all, did not think he would be a father, but called a mother, to six ship children. He had no idea how good of a father-mother he w...

Error has gone through multiple hells since the day he woke up in the Anti-Void. Sci and Blueberry still believe in him, but that's little consolation when he faces a br...

A 31 year old female died and reincarnated as Classic Sans. The multiverse is fighting.Will she join the fight does she know the truth?

Cover not by me and so as the characters. Random nightmare scenarios. The 1st chapters are all kiddies but as chapters move on, they get to be more uhhh let's say not f...

Nightmare was the guardian of negativity along with his brother who was the guardian of positivity, who is named Dream. Nightmare protects the negativity side of the tre...

After the truce with the star sans everything's been boring. Killer got bored of reading his book and goes for a walk. When walking he finds nightmare sitting near the...

Please read my first book before this one As Error and his companion has arrived in the new world, they live happily in the new world fitting in perfectly with the socie...

killer is a new something of a sans he has always lived life on the edge but through everything he keeps a happy smile, people always knows him as that one guy but kille...

Color took Killer and gave him his emotions, everything was fine at first but then he got bored and to think of it he missed killing other's, would he spend his day's ki...