1 - 20 of 99 Works in Sans (Undertale) Being an Asshole

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  1. Tags
    Summary

    **A Totally Accurate And Not At All Facetious Peek Into What Definitely Happens**

    The Milky Way Galaxy glitters in the viewport, millions of light years away. The several ships sucked through the wormhole drift in space, their crews shellshocked.

    "Wh-whAT THE HELL??" Undyne shrieks.

    "THIS IS ALL YOUR FAULT, YOU BARRACUDA!!" Papyrus says, refraining from the shrieking he himself would dearly love to make.

    "I JUST-" Undyne snarls, her golden eyes beading with green tears. "I just wanted a family reunion!"

    "WELL, CONGRATULATIONS, YOU GOT ONE!! IN THE GODDAMNED ANDROMEDA GALAXY!!"

    Language:
    English
    Words:
    15,117
    Chapters:
    4/24
    Comments:
    8
    Kudos:
    7
    Bookmarks:
    5
    Hits:
    98
  2. Tags
    Summary

    You aren't a good person, but that's okay, they love you for who you are!

    Language:
    English
    Words:
    23,673
    Chapters:
    14/?
    Comments:
    248
    Kudos:
    257
    Bookmarks:
    55
    Hits:
    2265
  3. Tags
    Summary

    you jumped into the underground, made your way through the ruins, and then you met sans. he likes what he sees and decides he's gonna keep you around for his own amusement. He's a nasty lil skeleton who never fails to remind you that he owns your ass and you kinda like it, but you also really don't. Consent as well as whether you like him or not is kinda a blurred, greyish area. Nevertheless, shenanigans and angsty love feels ensue

     

    this will be shamelessly smutty and kinda twisted with nihilistic ideologies, dark humor and a fucked up lack of morals because I like that shit.

    Language:
    English
    Words:
    99,929
    Chapters:
    42/42
    Comments:
    442
    Kudos:
    700
    Bookmarks:
    97
    Hits:
    17685
  4. Tags
    Summary

    “WHAT THE HECK?!” Papyrus yelled, covering his non-existent ears with his hands. “WHO'S SHOOTING AT US?!”

    “no one we wanna be shootin' the breeze with, i'll bet.”

    “REALLY? EVEN WHILE WE'RE IN MORTAL PERIL?”

    Sans grinned. “is there a better time ta fire 'em out?” His left eye flared cyan-gold while his other socket went dark. “'sides – we're not the ones in peril here.”

    “THAT IS NOT THE POINT.”

    -X-

    This is a story about right, wrong, and the no-man's-land that lies in-between. While Frisk wrestles with the unconditional love they bear their criminal family and their own over-inflated sense of morality, Sans struggles to protect them from the consequences of a gang war he himself may have accidentally started.

    You know what they say about good intentions. The road to hell is paved with them.

    Language:
    English
    Words:
    77,105
    Chapters:
    35/35
    Comments:
    328
    Kudos:
    387
    Bookmarks:
    69
    Hits:
    4665
  5. Tags
    Summary

    Sans isn't the biggest fan of humans.

    A chance encounter makes him think that maybe they're not all bad.

    I suck at summaries T_T

    Series
    Language:
    English
    Words:
    78,838
    Chapters:
    37/?
    Comments:
    559
    Kudos:
    987
    Bookmarks:
    125
    Hits:
    16702
  6. Tags
    Summary

    You fell down a hole on the famed Mt. Ebbot, a mountain where lots of people went missing. Today, that place would become your tomb as you come face to face with death himself, Sans. You know you're going to die, you can feel it. Will he at least give you the peace of mind of a last request, a dying wish? Maybe.

    Language:
    English
    Words:
    6,444
    Chapters:
    2/3
    Comments:
    14
    Kudos:
    43
    Bookmarks:
    7
    Hits:
    724
  7. Tags
    Summary

    Happy 3rd Anniversary, Undertale!

    After over 2000 resets, and watching his little brother die yet again, Sans finally snaps. His new choices lead to the barrier breaking and him assuming control of monsters. However, by absorbing the Red Soul and Chara's hatred, Sans becomes a ruthless dictator after almost single-handedly winning the war against humanity.
    Over 50 years pass, and Sans is still in command, respected and feared by monsters and humans. Humans have become slaves - treated well so long as they obey - and a new species has been born. They have been officially called Mongrels, and they are the offspring of human mages and monsters. All mages are eliminated, and Mongrels are sent to orphanages to learn to live in society with low level jobs to keep them under control.
    However, one day Sans stumbles upon a group of monster teens beating up a female mongrel they kidnapped specifically to abuse before handing over to the Royal Guard as a 'runaway' and immediately takes the abused girl in, much to the shock and dismay of the rest of the world. For someone who has been so ruthless, it makes no sense. But the world will soon realize that the mongrel, Raina is the key to Sans returning to his true self.

    Series
    Language:
    English
    Words:
    46,560
    Chapters:
    17/17
    Comments:
    80
    Kudos:
    85
    Bookmarks:
    20
    Hits:
    1135
  8. Tags
    Summary

    Chara's back. Frisk isn't sure why or how, but she's alive in her own body. Frisk manages to convince Sans not to murder Chara on sight in the hopes that her old companion and her new friends can reconcile their differences and learn to get along.

    Sans and Chara might have other ideas.
     

    Language:
    English
    Words:
    18,161
    Chapters:
    4/?
    Comments:
    40
    Kudos:
    48
    Bookmarks:
    10
    Hits:
    864
  9. Tags
    Summary

    When you fell into the Underground, you were only 13.

    Found by Toriel, you didn't hesitate to go with her. You lived with the goat monster who had taken you in and, though you knew that there was more to be explored, you never wished to leave the place you resided in. For 8 years, everything was perfect. You finally found a place that you called home.

    Then someone else fell down - Frisk.

    When they fell down, you watched as the world around you seemingly became a game. It started with the odd sense of deja vu that seemed to become a regular occurrence in your life. Once you watched the child murder Toriel in cold blood for the first time only for the loving monster to reappear with no recollection of what had happened, you knew something was wrong.

    You began to lock yourself in your room whenever everything restarted and, once the child left, you would reappear to discover what had happened in your absence. After this constant pattern, it seemed as if Frisk had finally forgotten your existence in the flood of resets and timelines.

    Time forgot your existence and that was fine with you.

    However, everything changed once again when you were the one to answer the knocking on the old ruin doors.

    Language:
    English
    Words:
    79,185
    Chapters:
    24/?
    Comments:
    880
    Kudos:
    1274
    Bookmarks:
    274
    Hits:
    18500
  10. Tags
    Summary

    A collection of stories depicting different points in different times and people's lives. Some of these stories are related. Some of them are not. It's up to you to figure it all out.
    Here's some clues:

    People are often stuck in situations that they don't want to be in. That's life, and it's best those people get over it. The sooner, the better.

    Some people think their situation is a lot worse than it is. They just can't seem to look at the other side and see the truth.

    Fear is something that can drive a person to the ends of the Earth. It can also awaken a courage belonging to the brave and the foolish.

    Some people think their lives are perfect. Until the moment they realize that it definitely isn't. Of those people, some will find the fix and others will not. Those who do not are likely to fall very far.

    Some say reality is what you make it. They don't often say reality is what makes you. A change in perspective can show a person just how naïve they really are, and that goes for both parties.

    (Basically a bunch of stories with my real life logic applied. Because I like things that make sense.)

    Language:
    English
    Words:
    41,746
    Chapters:
    9/?
    Comments:
    14
    Kudos:
    41
    Bookmarks:
    6
    Hits:
    1491
  11. Tags
    Summary

    He had been having dreams of the same cute little drunk human for almost a year now. They were vivid and she was fun to talk to, and he was convinced that his 'dreams' were accidental manifestations of her magic. Magic she didn't even realize she had. But that magic may have just pulled her into a world of danger.

    (not sure where I'm going with this but I love mafiafell sans. Lets see how this goes. Constructive criticism welcome. I'm a writing noob.)

    Language:
    English
    Words:
    25,909
    Chapters:
    14/?
    Comments:
    311
    Kudos:
    506
    Bookmarks:
    99
    Hits:
    6220
  12. Tags
    Summary

    (REVAMPED) It's been one week since you freed the monsters after Chara gave you a second chance to right your wrongs. Since then they have left you to live your life. Everything was perfect until Sans driven insane by the thousands of resets you and Chara had made took your soul. You are somehow saved by a demon named Ennard who you make a deal with to get your revenge on Sans.

    Series
    Language:
    English
    Words:
    2,702
    Chapters:
    6/?
    Comments:
    25
    Kudos:
    16
    Bookmarks:
    5
    Hits:
    558
  13. Tags
    Summary

    The world has changed since olden times, morphed into something new. Nothing is as it had been before. Mage laws have changed, humans had become more sophisticated, and the monster’s kind souls have been tainted by countless years spent dwelling in the pits of the Underground. A newfound tension has formed between them. Old allies embrace and enemies from ancient times are preparing weapons of war that hopefully will never be used.

    The future is uncertain, but that is what makes it interesting.

    Language:
    English
    Words:
    783
    Chapters:
    1/?
    Comments:
    3
    Kudos:
    19
    Bookmarks:
    4
    Hits:
    183
  14. Tags
    Summary

    You kinda ended up in an alternate universe because of your godforsaken curiosity and have a lavender colored spot under your left boob ever since. But it's all good! You got back to your original universe. Up on the surface. Yeahhh, all good... if you scrap out the part that it turns out some huge shit happened to your soul during the process and now you've got to live with that spot which is fine and all... unless you consider the side effects of your trip into an even more messed up version of the underground, or how Sans calls it, "what humans probably think the underground was like".

    // Classic Sans and Underfell Sans are both in this story, so prepare yourselves for a lot of mixed feelings

    Language:
    English
    Words:
    48,704
    Chapters:
    22/?
    Comments:
    144
    Kudos:
    247
    Bookmarks:
    55
    Hits:
    4339
  15. Tags
    Summary

    people seem to give swapfell and underfell bad rep because of fanon.
    i'm here to change that.

     

    speak no hate;
    see no hate;
    feel not hate.

    the swapfell brothers had wished they hadn't met them.

    Language:
    English
    Words:
    2,004
    Chapters:
    3/?
    Comments:
    8
    Kudos:
    14
    Bookmarks:
    1
    Hits:
    184
  16. Tags
    Summary

    Lost gets sucked into the world of Undervirus, and transformed into a human. Trying to move on from his dark past, he keeps his secrets to himself. Xans, having also been turned into a human, wants nothing more than to crack Lost's walls down and find out what he's hiding. But as we all know, polar opposites have a tendency to attract one another.

    I....really suck at summaries sometimes QwQ

    Language:
    English
    Words:
    10,398
    Chapters:
    5/?
    Kudos:
    4
    Hits:
    102
  17. Tags
    Summary

    Slave, Person who is under the control of another subject and who, therefore, lacks freedom. Humans were creatures of hate, ambition, power, submission and power.
    20XX, the monsters appear on Mount Ebott, released from their prison by a small child and humanity is worse than ever. They should of stayed underground.
    The monsters wonder why they thought humanity could have changed, how they forgot that the world was cruel and unforgiving, why they believed a small child'. As they watch they are torn from loved ones from family and are quickly forced into slavery.
    ————
    You are not happy with this new arrangement at all.
    You weren’t surprised that this happened. You knew the world had never changed it ways. The most predictable things are their need for power and the need for control. Another predictable, yet a little less so, was slavery. Humans have always had slaves.
    But, you're not a hero, trying to fix the problem is just as bad as doing nothing... It might even be worse.
    This was a horrible idea.
    And yet here you were, in a meeting with the most important people in the world of slavery and necklaces of monsters, being one of them.
    Youre going to bring back Monster rights.

    Language:
    English
    Words:
    3,728
    Chapters:
    2/?
    Comments:
    23
    Kudos:
    53
    Bookmarks:
    18
    Hits:
    889
  18. Tags
    Summary

    It's not natural.
    He swears it's not natural.
    He's done his due research.
    He's not supposed to cough two different types of flowers.

    (Tags will be updated as we go)
    (Keeping tags vague until it's explicitly in the story)
    (Chapter titles are song names)

    Series
    Language:
    English
    Words:
    5,254
    Chapters:
    5/6
    Comments:
    7
    Kudos:
    90
    Bookmarks:
    7
    Hits:
    857
  19. Tags
    Summary

    In a world where nearly everyone has magic, there is a peaceful island where people live in harmony with the sea and its creatures.
    Except for you, because clearly in a past life you offended some random god and now you are cursed to be the only person relegated to the land on an island full of fishers. And despite all of that, you still managed to catch the murderous attention of a hungry mermaid. Merman. Merskeleton. Mersomething.
    Whatever. If he thinks that you're going to be an easy prey, better for him to keep fishing, because you're not going down without a fight.

    Language:
    English
    Words:
    3,862
    Chapters:
    2/?
    Comments:
    57
    Kudos:
    200
    Bookmarks:
    39
    Hits:
    1034
  20. Tags
    Summary

    After a Genocide route, Sans completely ignores his promise and tortures Frisk.

    Series
    Language:
    English
    Words:
    762
    Chapters:
    2/?
    Comments:
    11
    Kudos:
    11
    Bookmarks:
    2
    Hits:
    792

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