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  1. Tags
    Summary

    Sans tries to go back in time to before his brother is killed. He ends up in the Underfell universe and bites off a lot more than he can chew. Can Underfell Papyrus help him back home or will he be stuck in this awful world forever?

    Notes:
    Noncon/dubcon warnings do not apply to any fontcest relationship.
    If you wish to skip the rape scene in this fic, you can skip chapter 3. However, the rest of the fic heavily references this chapter as this is a rape recovery longfic.
    Please read the warnings in the notes section of each chapter.

    Language:
    English
    Words:
    143,216
    Chapters:
    27/?
    Collections:
    2
    Comments:
    500
    Kudos:
    738
    Bookmarks:
    111
    Hits:
    13066
  2. Tags
    Summary

    Doctor W.D. Gaster is in quite a pickle. After the barrier had been broken, he and the other monsters had been set free. But no matter how hard he tried, he couldn't get a chance to find out more about Humans and their existence. Though, fate soon smiles in his favor as he finds out a little secret about his Human ambassador, Frisk. If he could find some way to have her in his clutches, perhaps he can learn more about Human nature....and quite possibly of her body as well.

    Language:
    English
    Words:
    30,220
    Chapters:
    6/?
    Comments:
    31
    Kudos:
    32
    Hits:
    669
  3. Tags
    Summary

    You were accustomed to struggling through a world you knew you'd never quite find your place in. But when an encounter outside of your workplace lands you jobless, you soon find yourself swept up in a series of events that force you into accepting a ludicrous offer from strangers in order to keep a roof over your head.

    Never would you have thought your place would be right by their side, nor that they'd fight so hard to keep you there.

    Series
    Language:
    English
    Words:
    132,335
    Chapters:
    27/?
    Comments:
    492
    Kudos:
    1074
    Bookmarks:
    216
    Hits:
    17271
  4. Tags
    Summary

    A mysterious signal. A crease in the fabric of reality. Everywhere, space and time are shifting and overlapping. A mysterious outsider arrives, and it becomes clear that there is something happening on this little blue planet in the quiet backwoods of the galaxy. Can Tenchi and Company, with the help of a ragtag band of extrauniversals, stop the warping of universes and end the struggle for power over reality?

    Series
    Language:
    English
    Words:
    17,066
    Chapters:
    11/?
    Comments:
    1
    Kudos:
    2
    Bookmarks:
    1
    Hits:
    48
  5. Tags
    Summary

    Sans and Gaster haven’t seen eye-to-eye for a while now; even small conversations between the two can feel like an uphill battle. When the existence of shadow monsters is revealed to the people of Ebott Town, Gaster forbids Sans to make any contact with them. To spite him, Sans decides that he’s going to become besties with a monster girl – Frisk. He probably could have handled his introduction better, though. Now she thinks you’re a creeper, Sans.

    Language:
    English
    Words:
    20,585
    Chapters:
    1/1
    Kudos:
    4
    Hits:
    41
  6. Tags
    Summary

    Fresh out of college, Chara drags Frisk to an adoption center in hopes that her lonely friend will take to one of the bitties there, but only after Chara promises to buy Frisk lunch for her troubles. After looking through the center for a while, they encounter a Blueberry, a rescue with abandonment issues that develops a near instant attraction to Frisk. His HP is unusually and dreadfully low for a Blueberry, so much so that the staff worry that one more heartbreak may reduce him to dust.

    Language:
    English
    Words:
    19,833
    Chapters:
    1/1
    Comments:
    8
    Kudos:
    18
    Bookmarks:
    1
    Hits:
    86
  7. Tags
    Summary

    When Frisk finished her story, barrier broken and monsters freed, she knew there was still a loose end, but she never expected everything to come unraveled before her eyes. Determined to save the only family she’s ever known, Frisk must stitch their lives back together after they are ripped apart at the seams and then attempt the impossible to stop it from ever happening again.

    [A story like this has been told before, in many different ways by many different people. Even so, I hope you enjoy it. Please know all major canon timelines and the music of Undertale before reading for the best experience.]

    [An AU of what happens after a specific time kid's True Pacifist ending.]

    Series
    Language:
    English
    Words:
    704,469
    Chapters:
    82/84
    Kudos:
    7
    Hits:
    169
  8. Tags
    Summary

    A fic about a human with dragon wings who steps into the Underground and gets transformed into a lizardman by the Barrier. He soon discoveres that there is more to the mountain than he thought, and that his soul is not entirely what he used to think it is.
    (Deltarune kicks in later, and is a big part of the plot.)

    Language:
    English
    Words:
    32,100
    Chapters:
    33/?
    Comments:
    22
    Kudos:
    37
    Hits:
    394
  9. Tags
    Summary

    Your father is a poor man, who has a plan that might make him rich. All he wants is money and to make his small family happy, so he hopes the Aster family is able to make that happen somehow.

    But you fucked all of that up for him because of what happened at that party. Or at least, that’s what you thought at first.

    Little did you know, one of the members took a liking to you… he isn’t exactly happy about that. He doesn’t like attachments. He struggles to give you everything. Struggles to feel things in general, and usually locks his heart away.

     

    You just had to open the cage.

    ___

    I update every other Saturday or Sunday!

    Language:
    English
    Words:
    19,909
    Chapters:
    6/?
    Comments:
    157
    Kudos:
    410
    Bookmarks:
    82
    Hits:
    3817
  10. Tags
    Summary

    A horrible accident involving his college's VOID collider leaves a male dryad, Asher, physically and mentally impeded. With nowhere to go and unable to live alone or with his partner, he moves into a self-run assisted living home of other VOID victims... mainly, eight grouchy, dysfunctional scientists who want nothing to do with each other.

    Series
    Language:
    English
    Words:
    31,383
    Chapters:
    13/?
    Comments:
    134
    Kudos:
    56
    Bookmarks:
    16
    Hits:
    723
  11. Tags
    Summary

    Once upon a time, a human fell into the Underground. They were able to break the barrier and free the monsters that lived below.

    But is it really that simple?
    Is it really that easy?

    In this world it isn't. Monsters have been stripped of their expressive emotions leaving only basic feelings such as satisfaction and distaste.

    And only humans have the ability to unlock their feelings again and free them all...

    Language:
    English
    Words:
    48,414
    Chapters:
    38/?
    Collections:
    1
    Comments:
    22
    Kudos:
    56
    Bookmarks:
    10
    Hits:
    1363
  12. Tags
    Summary

    Alphys creates a machine that can display a monsters memories and invites Sans, Papyrus, Undyne, Toriel, and Frisk to help test it out. Sans is suspisious be agrees to help. His suspisions turn out to be well founded when something goes wrong and they have no way to stop the test to make matters worse the one person who didn't want his memories shown is having them played like a movie. Now the group is forced watching Sans' most important memories to the end but maybe it could be fate. Sans has been secretive far too long or are somethings better left forgotten.

    *Saturday updates (Sunday if i'm a little behind)*

    Language:
    English
    Words:
    14,112
    Chapters:
    12/?
    Comments:
    23
    Kudos:
    56
    Bookmarks:
    8
    Hits:
    487
  13. Tags
    Summary

    You're in a gang situated near Ebbot City, and you live for the violence. You're not without your morals, they're just... flexible. But when one of your monster friends invites you to Grillbys, they might have accidentally brought you into a world of trouble. Can you keep your new skeleton friends from learning of your gang affiliations? What will their brothers do when they see your LV and EXP? And why are the amalgamates disappearing one by one, including your best friend Reap?

    Featuring friendly amalgamates, drama, high tensions, and traumatized skeletons, what will you do as your list of people to protect grows far faster than you ever expected?

    Series
    Language:
    English
    Words:
    118,228
    Chapters:
    45/?
    Comments:
    674
    Kudos:
    878
    Bookmarks:
    182
    Hits:
    13095
  14. Tags
    Summary

    A young world hopping WingDings finds himself dropped in an underwater kingdom with a bony fish tail instead of legs. But learning to swim proves the easier challenge when faced with telling his new caring guardians the truth of his mysterious appearance.

    Series
    Language:
    English
    Words:
    32,328
    Chapters:
    9/12
    Kudos:
    18
    Bookmarks:
    2
    Hits:
    116
  15. Tags
    Summary

    Ten years have passed since monsters left the underground. As Frisk prepares to begin college, Sans faces questions about meaning, motivation, and when it's worth getting back in the game.

    (Or: the one in which Sans goes back to grad school . . . eventually.)

    Language:
    English
    Words:
    45,974
    Chapters:
    11/?
    Comments:
    64
    Kudos:
    66
    Bookmarks:
    14
    Hits:
    783
  16. Tags
    Summary

    “Hey Frisk...”

    “Em, hi-”

    “Where did I sleep? You didn't have to tie me up or something did you?”

    “No... Not that...” Frisk started blushing again.

    “What's with that blush... Hold on... You said I was clutching onto you... Right?”

    “Yes, that happened...”

    “Don't tell me,” Chara said, “we slept together?”

    “That's basically what happened.” Frisk responded, staring at the same spot on the ground that Chara was staring.

    “Right.”

    “So, when we... Fell asleep... You said it was... Very warm?” She continued.

    “Oh my God, just get in her bed already!”

    “Shush Undyne, you'll blow our cover!”

    Frisk lives happily with everyone on the surface, but sometimes goes back under ground to search for Chara and Asriel. When she does stumble into Chara, it is very different to what she expected.

    Frisk and Chara are both females. They are whatever age you think they are for maximum cuteness, but they're in their teenage years.

    NOTE: After removing the update chapter I moved 14 and 15 back but chapter 15 is new

    Series
    Language:
    English
    Words:
    40,397
    Chapters:
    19/?
    Comments:
    99
    Kudos:
    60
    Bookmarks:
    4
    Hits:
    1711
  17. Tags
    Summary

    Basically it's a lot of chapters of Reader/Sans angst and fluff- there's a bit of a plot but I kind of discover it as I go. Inspired by Undertale, other creators, and my need to shove Sans through a meat grinder and then give him the happy ending he deserves-even if it takes him a while. Please don't judge- I don't edit too much and so my past/present tenses get confused often. Thanks!
    EDIT: After getting farther through this, I'm realizing I do kind of have my own overarching plot! If you leave kudos, I love to go check out your work. So much fun, thank you guys!

    Language:
    English
    Words:
    56,343
    Chapters:
    27/?
    Comments:
    3
    Kudos:
    19
    Bookmarks:
    3
    Hits:
    599
  18. Tags
    Summary

    King Asgore made a vow to kill any human that fell Underground, a choice fueled by grief and despair.

    In one reality, it's a promise he's unable to keep.

    Series
    Language:
    English
    Words:
    33,137
    Chapters:
    49/?
    Comments:
    318
    Kudos:
    46
    Bookmarks:
    6
    Hits:
    925
  19. Tags
    Summary

    you aren’t Real, but for him... for your little brother, you can pretend.

    (in which Sans is Papyrus’s imaginary friend, and magic is both a wonderful and terrifying thing.)

    Language:
    English
    Words:
    47,474
    Chapters:
    81/100
    Comments:
    1281
    Kudos:
    914
    Bookmarks:
    116
    Hits:
    9958
  20. Tags
    Summary

    The legends and the history books try to make it seem like monsters are all peaceful creatures that couldn't hurt a fly. But even we have our bad apples. I should know, I was one of the worst. The serene Underground you've come to know was a recent thing, one that was built on a lot of mistakes. This is the story of some of them.

    Series
    Language:
    English
    Words:
    123,462
    Chapters:
    62/?
    Comments:
    55
    Kudos:
    48
    Bookmarks:
    6
    Hits:
    781

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