1 - 20 of 361 Works in Big Brother Sans (Undertale)

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  1. Tags
    Summary

    En este universo alterno, tras caer al núcleo, Gaster renace como Kriss, quien a su vez es el hermano de Frisk.

    One-shot

    Language:
    Español
    Words:
    862
    Chapters:
    1/1
    Hits:
    4
  2. Tags
    Summary

    "The little girl just could not sleep because her thoughts were way too deep, her mind had gone out for a stroll and fallen down the rabbit hole."

    Frisk, a teenage girl of 16, wakes up after a fall and finds herself in a strange, magical kingdom of monsters.

    Only this underground world is not what it used to be.
    The king has turned insane and has been unseen for years. Meanwhile, it has turned cruel and oppressive as a group of violent and sadistic warriors known as The Royal Hunt work has taken control, working as judges, juries, and executioners, led by the mysterious self-proclaimed champion of the elusive King Asgore...

    Now, in this suffering kingdom, Frisk meets strange new souls and learns forgotten lore of a faded era, suffering through thick and thin and dying countless times to reach home, all while reality seems to sometimes break around her. Thankfully, she has one ally she believes she can fully trust.
    A helpful little flower called Flowey...

    WARNING: This is a dark and violent story featuring MATURE THEMES, GRAPHIC DESCRIPTIONS, SWEARING, AND GORE, so if you are too squeamish or simply don't like those sorts of things then I suggest you go back.

    Series
    Language:
    English
    Words:
    309,749
    Chapters:
    49/?
    Comments:
    166
    Kudos:
    420
    Bookmarks:
    33
    Hits:
    9,373
  3. Tags
    Summary

    Sans is willing to do anything to make sure Papyrus gets to live a semi-normal life for at least a little while.

     

    Updates slowly!

    Language:
    English
    Words:
    64,486
    Chapters:
    14/20
    Comments:
    32
    Kudos:
    80
    Bookmarks:
    12
    Hits:
    1,542
  4. Tags
    Summary

    Papyrus, now a surface-dweller, decides he's going to go to college to meet human college students and become wildly popular. Being the first monster student at a human post-secondary school inevitably comes with a unique set of social challenges, but Papyrus is nothing if not capable! With the help of a new human tutor and his family cheering him on, he will acquire every degree possible and then some.

    You are a part-time student who gets asked to help out the new skeleton monster you've heard screaming in the halls, and you couldn't say 'yes' fast enough.

    Language:
    English
    Words:
    19,034
    Chapters:
    7/?
    Comments:
    70
    Kudos:
    88
    Bookmarks:
    15
    Hits:
    929
  5. Tags
    Summary

    Sans misses his brother.

    Stones is here for moral support.

    Series
    Language:
    English
    Words:
    2,312
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    6
    Hits:
    70
  6. Tags
    Summary

    It was a bit...ironic, honestly.

    He (was he a 'he'? or was he a 'she'? he- she- they- didn't remember the life before all of this...) was just a regular person, as so he thinks, he didn't remember much of his actual past life. Just that he was human and..just normal.

    He didn't really expect to die and reincarnate, again and again and again and-

    Well, his reincarnation just repeated, over and over and over and over and over....

    Well anyways, he found it a bit ironic. why? well, he'd never thought that reincarnation was a thing, and that he've been practically daydreaming about it in his past life.

    But he was envious. Just slightly, he didn't wanna be rude, besides, other people aren't experiencing what he's experiencing. If they don't know his problems, that's fine.

    That was fine, at least they didn't have to die so gruesomely or lonely everytime they die. And at least they didn't have to wake up, knowing that this was a new life and that the people around you didn't know you weren't yourself as a whole.

    That was fine, at least THEY didn't want to die one final time everyday.

    That was fine.

    Right...?

    Series
    Language:
    English
    Words:
    32,048
    Chapters:
    28/?
    Comments:
    12
    Kudos:
    49
    Bookmarks:
    13
    Hits:
    640
  7. Tags
    Summary

    Sans and Papyrus, the two young skeleton brothers, lived a happy, peaceful life with their parents on the surface before the war. One day, that all changed.

    Now, they struggle to survive day to day, suffering tragedy, hardship, and loss.

    The world seems to be against them, but as long as they are together, they can handle anything. Right...?

    Takes place before and during the events of Undertale.
     


    Undertale, its characters, locations, and gameplay copyright Toby Fox.
    Original characters created by me, Kimtana.
    Please do not use without both permission and credit.

    Language:
    English
    Words:
    213,240
    Chapters:
    63/?
    Comments:
    531
    Kudos:
    523
    Bookmarks:
    44
    Hits:
    12,596
  8. Tags
    Summary

    Sans lives alone with his baby brother in an old house on the outskirts of New Home. He raises him to the best of his abilities. One day, he hears the doorbell ring. He opens it and finds an abandoned child. A human child. He has no idea how they got there. The only thing left with the child was a note. Sans reads the note and learns the orphan's name. Frisk.

    Series
    Language:
    English
    Words:
    33,450
    Chapters:
    14/?
    Collections:
    1
    Comments:
    47
    Kudos:
    78
    Bookmarks:
    11
    Hits:
    1,705
  9. Tags
    Summary

    Papyrus has a little accident on the playground. Blue has some not-so-little anxiety about it.

    Language:
    English
    Words:
    200
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    51
    Bookmarks:
    6
    Hits:
    160
  10. Tags
    Summary

    Papyrus is confused as to why Undyne is so upset about the scars on his hand. It's nothing serious after all!
    Why is everyone freaking out about it? Everybody has a way of coping with things, his coping just happens to involve scratching, what's wrong with that?

    According to his friends and family, a lot of things are wrong with that.

    Language:
    English
    Words:
    3,132
    Chapters:
    2/2
    Comments:
    8
    Kudos:
    26
    Bookmarks:
    1
    Hits:
    263
  11. Tags
    Summary

    The earliest memory Sans had was raising Papyrus. He made sure he was strong for both of them and Sans would always be there when his baby bones needed him. Throughout the years, the brothers had a fairly normal and happy life together...So why is it now that Sans is suddenly having these reoccurring nightmares? Why is he having these random memories of scientists and experiments? And how can he possibly explain these horrid events to Papyrus? It was all too much for Sans alone. Papyrus, who's now a young adult, desperately wants to help his older brother. Now Sans is finding himself being taken care of by his little brother, realizing maybe he's not quite the kid he used to be. Having the roles changed, he's now the one being comforted, fed, watched, and feeling more small and helpless than ever. Now all Sans can think of is, who's really the baby bones now?

    Language:
    English
    Words:
    12,355
    Chapters:
    9/?
    Comments:
    7
    Kudos:
    60
    Bookmarks:
    7
    Hits:
    754
  12. Tags
    Summary

    Dr WD Gaster awakens in the Core lost and confused…

    Bday Gift for Linn!

    (He’s been let out of the basement for a break guys don’t worry I’m a nice person)

    Language:
    English
    Words:
    1,324
    Chapters:
    1/1
    Comments:
    7
    Kudos:
    22
    Bookmarks:
    2
    Hits:
    210
  13. Tags
    Summary

    A year and four months. That's how long it's been since the Final Reset. Everyone has been living their best lives on the Surface. Sans, for one, couldn't be happier. The silly old woman he used to pun with is now his girlfriend. He's an awesome Dunkle and Not Dad Guy to Frisk, Chara and Asriel. Papyrus is finally living his best life and everyone is moving forward.

    There's just one little caveat. One teensy little flaw in an otherwise happy ending.

    Sans is dying. On the evening of his 27th birthday, no less. Nobody is taking it well.

    Fortunately, a certain skeleton outside of space and time knows what to do.

    "If you want to save Sans, all of you must be willing to pay the mental and emotional cost."

    In order to bring Sans back to life, those closest to him will have to view his important memories. Along the way, the group will unearth all the skeletons in his closet.

    Starting with his early childhood.

     

    LAST UPDATED: 01/13/2024!

    Artwork by Nightmare Estudios, who is translating the story to Spanish!

    Note: To anyone who has read this before the name change, the story is still the same. I've just updated the title. :)

    Series
    Language:
    English
    Words:
    235,447
    Chapters:
    24/?
    Comments:
    820
    Kudos:
    689
    Bookmarks:
    125
    Hits:
    28,970
  14. Tags
    Summary

    After a few resets, Sans and his group are finally on the surface. The kid hasn't made a move to do it again which is great. Sometimes random bouts of pain pop up but he'll be fine.

    Well except for the nightmares and the weird shadows he has been seeing around the kid and that flower that is. With all this nausea he doesn't think he can 'stomach' this all-!

    Language:
    English
    Words:
    2,139
    Chapters:
    2/?
    Comments:
    2
    Kudos:
    29
    Bookmarks:
    6
    Hits:
    398
  15. Tags
    Summary

    Trauma is quite similar to poison, seeping into your mind and robbing one's ability to continue on your life when every moment of your life is plagued with memories as dark as the abyss.

    After Sans injured himself once again due to another vicious night terror, Alphys suggested they use the memory machine she had invented in order to understand what ails their skeleton friend with the kind of unwavering firmness that made Frisk remember why the amalgamates exist.

    Even though Frisk had achieved the ultimate happy ending, it seems there was one last hurt to tackle - a hurt so rooted deeply into the confines of Sans' mind that it is shattering his soul slowly but surely.

    A forgotten story will be learned.

    Series
    Language:
    English
    Words:
    17,109
    Chapters:
    6/20
    Comments:
    47
    Kudos:
    187
    Bookmarks:
    39
    Hits:
    3,352
  16. Tags
    Summary

    A collection of meta for Undertale with a particular focus on the skeleton brothers (at least for now). Unpopular thoughts and opinions are shared. Especially regarding the identity of Dr. Gaster, who I have concluded isn't Mystery Man. He's just Sans, who is not particularly special. Rather overexposed, overhyped, and overrated actually (both as Sans and as Dr. Gaster). Beware of salt and snark! The first chapter is a table of contents; second is something of an introduction.

    UNFORTUNATE UPDATE: Looked through the chapter drafts. The damage, in regards to broken/missing images, is much MUCH worse than I thought. This unfortunately looks to be a lost cause.

    Language:
    English
    Words:
    6,508
    Chapters:
    3/17
    Comments:
    13
    Kudos:
    22
    Hits:
    544
  17. Tags
    Summary

    Frisk is having a bad day

    Their brothers help them out

     

    Secret Santa gift!

    (Title is from the song ‘Bad Days’ by the Score)

    Language:
    English
    Words:
    1,501
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    21
    Bookmarks:
    7
    Hits:
    190
  18. Tags
    Summary

    Sans is exhausted. He is lonely, hurting, and only two steps away from Falling Down.

    Underfell's first ever Gyftmas is approaching and Red is scrambling. He wants to get his brother the best present ever to celebrate, something that goes across resets with them.

    A visit to Undertale provides him with an idea. It's morally wrong, completely unethical, and likely illegal.

    Luckily for Red, he never really had a moral code.

    MIND THE TAGS.
    This story will get DARK. If anything, literally ANYTHING, looks triggering to you, please don't read this.

    On a brighter note, this is my first time writing smut! Please feel free to give me tips or tell me how I did!

    I also accept ideas for things to happen in the story.

    Language:
    English
    Words:
    31,016
    Chapters:
    8/?
    Comments:
    28
    Kudos:
    111
    Bookmarks:
    27
    Hits:
    3,167
  19. Tags
    Summary

    Frisk could feel Chara narrowing their eyes at them. "Seriously, can you please take that stupid bandana off your head?" Chara sneered. "It makes you look ridicul-"

    "Mandana," Frisk interrupted.

    “…excuse me?”

    "Mandana. Not bandana."

    ”Are we seriously gendering the bandana just because it has abs on it?”

    "Yup!"

    ”…I really wish that others were able to hear your sass.”

    "I don’t know, I kinda like the idea that you’re the only one getting to see this side of me." Frisk looked in the window of a house they were passing by, winking at their reflection in it. "Makes you special, doesn’t it?"

    ”I- Stop flirting with me. I’m a dead person’s voice in your head!”

    "No."
    ---
    A child falls into the Underground and discovers a world beyond their imagination. Between the monsters, the magic, and the power to undo their mistakes and make everything right, they find happiness in places they would have never imagined. But when things start to get difficult, will they have the strength they need to keep fighting? How much pain are they willing to suffer to make things right? How much are they willing to give up to reach their happy ending?

    Language:
    English
    Words:
    121,297
    Chapters:
    8/?
    Comments:
    147
    Kudos:
    171
    Bookmarks:
    39
    Hits:
    6,701
  20. Tags
    Summary

    Basically me being sad at 1 am and deciding to project into funky skeletons. Obviously not canon.

    Was originally gonna be a whole story with this being like, a spoiler but then I just couldn’t write anymore about this while not being sad hahaha

    Language:
    English
    Words:
    1,240
    Chapters:
    1/1
    Comments:
    5
    Kudos:
    19
    Hits:
    93

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