1 - 20 of 87 Works in Sans is a Mess (Undertale)

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  1. Tags
    Summary

    Sans didn't know who had gotten ahold of their world, who did purely True Pacifist runs several times in a row with no exceptions. Then, they stopped. He understood why when SHE fell down instead of Frisk.
    She had a Kindness SOUL. Of course she did.
    He didn't know how he was lucky enough to meet a Player who actually treated everyone Underground like actual people, let alone be liked and trusted by said Player.
    He wasn't about to lose her.
    Time to fulfill that promise to Toriel and actually keep her safe this time.
    He totally wasn't doing it for selfish reasons.

    Language:
    English
    Words:
    7,314
    Chapters:
    2/?
    Comments:
    12
    Kudos:
    23
    Bookmarks:
    11
    Hits:
    357
  2. Tags
    Summary

    (Book 2 of my "Welcome Home, Serial Killer" Rewrite! Read that or else this won't make any sense to you!)

    Now, in a new home, with a little girl and a (probably) not mentally stable boyfriend, Sans was on his way to a new life. It was finally time to live for himself.

    Oh, and... several serial killers were his roommates. It was inconvenient, but they made it work.

    Now only if they could raise her to not be crazy like they are.

    Series
    Language:
    English
    Words:
    9,289
    Chapters:
    4/4
    Comments:
    43
    Kudos:
    53
    Bookmarks:
    9
    Hits:
    489
  3. Tags
    Summary

    It's been a month since Frisk has reset. Sans can't take it anymore, and decides to do a manual reset, but things don't go as planned. What will Sans do when he finds himself in a different universe? And how will Frisk feel when they reset and Sans is gone?
    (I suck at summaries lol. Idea belongs to me, JimmySMASH4dawin helped me with the writing. Has my own interpretation of Storyspin, since the current owner abandoned it)

    Language:
    English
    Words:
    13,580
    Chapters:
    13/?
    Comments:
    58
    Kudos:
    46
    Bookmarks:
    5
    Hits:
    936
  4. Tags
    Summary

    Rationality has never been her strong suit.

    She leaves the consequences and contemplation for Cant, ignores her frayed morals in favor of drawing her blade on whichever target Gaster orders her to slice next.

    Her habit of danger and adrenaline, however, are brought to an unexpected crossroads upon the incorporation of a mystery man-- both the bane of her fucking existence, and the promise of something beyond the constrains of a life already carved out for her.

    ---

    OR: Frisk is a young woman who's life has become so intertwined with metropolis Irae's leader, Gaster, that she might as well be his extension of self - has been, really, for all of her subsequently renewed life. Living as a ruthlessly trained mercenary under the man has had its pros and cons, not least of which being the involvement in matters far greater than those of life and death. Her assumption of distance from this, however, comes to a startling crumble courtesy of Him - the walking contradiction of a supposed scout; the one who forces her into the recognition of truths better left buried, and of lies lethal in their delivery of both reality and falsehood.

    Language:
    English
    Words:
    41,635
    Chapters:
    7/?
    Comments:
    2
    Kudos:
    43
    Bookmarks:
    1
    Hits:
    188
  5. Tags
    Language:
    English
    Words:
    17,488
    Chapters:
    5/?
    Kudos:
    14
    Bookmarks:
    2
    Hits:
    120
  6. Tags
    Summary

    oh yeah new story out *does a little dance* anyway this is just something that popped into my head ^^

    so sit back and enjoy the ride

    also I get three bitties just cause and magic and some shit like that

    the story itself is good I swear

    Language:
    English
    Words:
    9,895
    Chapters:
    5/15
    Comments:
    2
    Kudos:
    14
    Bookmarks:
    1
    Hits:
    241
  7. Tags
    Summary

    You wake up, and you don't know where you are. You don't know who you are, or why you're here. You don't know these people...

    And you most certainly don't know who he is.

    There is one thing you do remember, though; and only one thought is clear in your mind:

    Above all else,

    you need to find your sister.

    Series
    Language:
    English
    Words:
    98,633
    Chapters:
    63/?
    Comments:
    1168
    Kudos:
    400
    Bookmarks:
    75
    Hits:
    13942
  8. Tags
    Summary

    Something has changed.

    Sans is granted back his once forgotten memories. All the times they were freed... and the one time they were killed.

    But in order to end it all, he'll need the anomaly's help to reassemble the only entity who might posses the knowledge of how to finally stop these resets.

    Meanwhile, a now regretfull yet still tainted Frisk finds a strange sort of comfort in the fact that they're not alone with Chara anymore. Even if the skeleton they're stuck with hates them even more.

    Friends and foes are reassessed, as they discover the chaos that preceeded them both, and create an unexpected truce.

    But Sans isn't the only pawn in this game. The man will win, whatever it takes...

    The two anomalies will pay, whatever it takes...

    (Summary and title have been updated! Chapter 4 is coming and I hope it turns out as good as 3, tho it's given me some pain. Thank you all so much for the hits and kudos!!!)

    Language:
    English
    Words:
    11,721
    Chapters:
    3/?
    Comments:
    6
    Kudos:
    10
    Hits:
    172
  9. Tags
    Summary

    Sans and Papyrus were your best friends until randomly they just cut off all contact with you. This went for everyone else in your life so it didn't really hurt that much when they did.

    The only question is why they didn't do it sooner.

    So after two years of loneliness, what was originally a drop off turned into a hospital trip, a broken leg, and your once best friends now homeless.

    What should be happening is them owing you a thanks for rescuing their so called, "Cousins" from a fire.

    Yet here you are offering them a place to stay, at your big ass mansion for the next eight months.

    So now you live with the people who abandoned you, along with their so called "family" who by the way don't really like you because you're a mage, but it's barely relevant to the plot so -

    What could possibly go wrong?

    Language:
    English
    Words:
    108,383
    Chapters:
    9/?
    Comments:
    98
    Kudos:
    486
    Bookmarks:
    139
    Hits:
    9661
  10. Tags
    Summary

         Was he crazy for thinking about her so often? More than likely.

          Did he regret it, or feel sorry? Not necessarily.

          She was the one who left the curtains open. She was the one who kept them open even after catching him masturbating while staring right at her. She was the one who was so open and free with sex so obviously.

          If she wanted him to stop, she could’ve closed the curtains at any time. Yet she didn’t.

          So he kept watching.

          … and, he hated to admit it, but he wasn’t that patient of a man.

    Language:
    English
    Words:
    3,635
    Chapters:
    1/?
    Comments:
    5
    Kudos:
    39
    Bookmarks:
    6
    Hits:
    346
  11. Tags
    Summary

    He loved them...he really did! He...he just panicked. And now what’s done is done and he will do what ever he can to keep them with him, and now that means away from his alternative selves.

    Language:
    English
    Words:
    43,394
    Chapters:
    19/?
    Comments:
    350
    Kudos:
    950
    Bookmarks:
    203
    Hits:
    21450
  12. Tags
    Summary

    He'd never thought things would turn out this way.

    They were happy. He was happy. All he was supposed to think about was when his little brother was going to come out. This wasn't... this wasn't part of the future he'd seen laid out for them.

    Something in him, something old and burning and still human, told him that the story wasn't written like this.

    Sans stared down at the babybones wrapped in the red scarf he and his creator treasured so dearly. Papyrus was still so weak...

    "it's going to be okay," He told him. "i promise."

    But would he himself be okay?

    ---

    In which Sans has jumbled memories of a life long gone and adores people with a ferocity that's frightening and might just be the end of him someday.

    ARC I: Days of Childhood: 1-???
    ARC II: ???

    Language:
    English
    Words:
    56,432
    Chapters:
    18/?
    Comments:
    369
    Kudos:
    489
    Bookmarks:
    130
    Hits:
    10592
  13. Tags
    Summary

    You were a mage, a powerful one at that; raised by mages you were told to despise and destroy monsters at all costs. but there was something about their words that didn't resonate with your soul. You had no reason to act so hateful towards these creatures. So you chose not to. You met a lovely skeleton, he seemed to appear out of nothing but a black ink spill. i tried to follow him after he left, i wanted to see his world. That was my first mistake.

    Language:
    English
    Words:
    2,792
    Chapters:
    5/?
    Comments:
    9
    Kudos:
    9
    Bookmarks:
    4
    Hits:
    189
  14. Tags
    Summary

    Someone comes into Grillby's bar right before he is about to close and Grillby isn't happy about it.

    ...Or maybe he actually is?

    Language:
    English
    Words:
    2,683
    Chapters:
    1/1
    Comments:
    6
    Kudos:
    18
    Bookmarks:
    1
    Hits:
    350
  15. Tags
    Summary

    After the barrier is broken, everyone lives happily ever after on the surface.

     

    :)

    Language:
    English
    Words:
    11,989
    Chapters:
    6/?
    Comments:
    6
    Kudos:
    35
    Bookmarks:
    4
    Hits:
    1078
  16. Tags
    Summary

    Monsters came up to the surface three years ago and while most people accepted them and wanted to right the wrongs of the past, some didn't. You were one of the people that sought to right the wrongs of the past and move forward for a better life, because you too wanted to leave your past behind you. Starting your last year after beginning college late and finding a great group of friends, your life was going great. Of course, there were a few bumps, but life was going well.

    Until you lost your job.

    Needing quick cash you signed up for a nanny service and are matched up with none other than Queen Toriel to be a nanny for Ambasider Frisk and his demonic flower brother. But the adults are even weirder than the kids. There's the gay muscle fish and her nerdy girlfriend lizard, a celebrity robot and his ghost cousin, a sweet man-child skeleton and his lazy brother who will just show up whenever they like, and lastly the King of the monsters who your new boss has some beef with. Strap in cause your life is about to get a whole lot more chaotic.

    Suggested name: Alexandra Mason

    So it's not really clear for the most part but this IS set in the handplates universe. So there's that.

    Language:
    English
    Words:
    29,153
    Chapters:
    5/?
    Comments:
    29
    Kudos:
    71
    Bookmarks:
    17
    Hits:
    1375
  17. Tags
    Summary

    The two are not only exploring the world together... they're also exploring their feelings.

    -

    Me and my s/o wrote this while playing frantic fanfic. Enjoy.

    Language:
    English
    Words:
    1,411
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    79
  18. Tags
    Summary

    Gaster returns home to a big mess. Physical and emotional. Of course, he can never leave his two lovers home for one day by themselves- Wait. Where's Grillby?

    Language:
    English
    Words:
    4,646
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    32
    Bookmarks:
    3
    Hits:
    331
  19. Tags
    Summary

    Your hands shook, eyes welling up with unshed tears as you looked at the scene in front of you. The room was completely torn up, not a single bit of furniture survived the reckless use of magic that had shook the whole house for days. Curled up in the middle of the room was a figure, shaking from either exhaustion or sobs, you didn’t know. “Are.. Are you okay?” It was a dumb question. After all, how okay would you be when you finally realised you’d been toting around your dead sibling’s body?

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    You are boring. Life is boring.

    Except your best friend, Papyrus. He always seems to be shoulder deep in drama and excitement. A quick stop at his house revealed the source of all this happened to be a multitude of beaten and broken skeletons, who seemed to believe life has bested them.

    So out of the goodness in your heart and maybe a little bit of curiosity, you let these skeletons invade your life as you try to figure out alongside them why you’ve bothered to stick around.

    Underseige belongs to TaintedCure
    Fraudtale belongs to me

    All other AUs belong to their creators!

    Language:
    English
    Words:
    4,666
    Chapters:
    3/?
    Comments:
    18
    Kudos:
    44
    Bookmarks:
    14
    Hits:
    456
  20. Tags
    Summary

    Frisk and Y/n are cousins who are extremely close. One summer both Frisk and Y/n's parents bring them to a cabin on Mt. Ebott. this leads to Frisk disappearing one night, and Y/n being sent to find them.

    this fic is purely for my enjoyment, as I never see trans masc reader in x sans fics. therefore I took it upon myself to write one. I apologize for any shitty writing or plot holes.

    [I suck at summaries please read it, I swear its worth your time]

    {Thank you for the title of the story J_e_s_t_e_r !!}

    Language:
    English
    Words:
    1,457
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    35
    Bookmarks:
    8
    Hits:
    311

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