Advid_Undertale_Reader



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  1. Public Bookmark 55

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    Summary

    You'd been happy. Life had been going perfect. Until it wasn't. You lost those dearest to you and in your mourning and grief, you suddenly find yourself staring at the machine in the basement. Then you're whisked away to another world and things just seem like so much given all you've already gone through.

    How will the Skeleton House react when they learn a secret even you don't realize you're hiding? And can they help you recover from your grief?

    Language:
    English
    Words:
    18,284
    Chapters:
    11/?
    Comments:
    85
    Kudos:
    284
    Bookmarks:
    55
    Hits:
    4,350

    23 Jul 2026

  2. Public Bookmark 30

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    Summary

    Most people spend their whole lives wishing that someone would come along and sweep them off their feet.

    But what happens when that person is already in a relationship?

    Who will fate honor? And who will be cast aside in the dust.

    And the more important question... who will get a better grade on their quantum physics final?

    Language:
    English
    Words:
    30,636
    Chapters:
    11/?
    Comments:
    111
    Kudos:
    137
    Bookmarks:
    30
    Hits:
    2,574

    23 Jul 2026

  3. Public Bookmark 31

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    Summary

    “so, you’re uh…” the blue skeleton in front of Sans had an odd pinched expression.

    “an advanced AI” Sans clarified and his social program hissed at him to relax his posture “nothin’ more an’ nothin’ less”

    Sans’ analytics quickly gathered the expression of each skeleton monster in the room to come to the conclusion that something was off. He carefully noted the odd atmosphere as the chime of a directive made itself known.

    FIND A WAY HOME

    Something in him settled and the red circlet at his temple evened out to a mild yellow.

    “you sure about that pal?” the first skeleton’s red twin said as he picked his golden tooth after a pause.

    “my social programming’s pretty complex, it can be hard to tell i‘m just a machine” Sans tried not to let incredulity sneak into his voice—of course he was sure.

    “THAT CAN’T BE RIGHT” a lighter blue skeleton said rather intensely and Sans’ analytics scrambled to see where he went wrong “YOU HAVE A SOUL. RAZZ CHECKED YOU EARLIER”

    Sans blinked at the accusation.

    Or

    Sans is pretty convinced he’s a machine, everyone else is convinced he’s got issues.

    Series
    Language:
    English
    Words:
    74,492
    Chapters:
    6/?
    Comments:
    102
    Kudos:
    141
    Bookmarks:
    31
    Hits:
    2,198

    17 Jul 2026

  4. Public Bookmark 53

    Tags
    Summary

    You somehow got transmitted into a popular romance visual novel about dating skeletons?

    You were put into a role of an NPC who helps players win the hearts of their Soulmate with various items you have in your little shop. Luckily, you weren’t interested in getting into a relationship soon and thought that you’ll be living in solitude happily, but fate has other plans for you-

    “Greetings, how can i he-”
    “WOWIEE! I DIDN’T KNOW THERE’S A SHOP NEARBY!”
    -By adding a couple of bones on you.
    “…. Wuh?”

    Language:
    English
    Words:
    11,534
    Chapters:
    6/60
    Comments:
    47
    Kudos:
    168
    Bookmarks:
    53
    Hits:
    1,920

    15 Jul 2026

  5. Public Bookmark 27

    Tags
    Summary

    Hmm, such a thing of wonder in this crowd
    I'm a stranger in this town
    You're free with me
    And our eyes locked in downcast love
    I sit here proud
    Even now you're undressed in your dreams with me

    ~~~~~~~

    You didn't cheat out of retaliation. To make things even. Perhaps some part of you did, a small vindictive part that had been simmering ever since you found those lipstick marks on his collar, and perfume wafting off of his clothes that certainly wasn't yours.

    No, you just wanted someone to touch you, needed it after a year of just you and your fingers. And, oh, that skeleton you found at the club? He most certainly knew how to do that, and then some.

    But, Alas, you only planned for it to be a one time thing, a nice night to help fill that ache in your chest, for now, atleast, until it came crawling back. You didn't think you would ever see him again.

    And then you did.

    Over

    And Over.

    ~~~~~~~

    《Underfell! Sans x Reader fic》

    Language:
    English
    Words:
    39,458
    Chapters:
    9/?
    Comments:
    41
    Kudos:
    166
    Bookmarks:
    27
    Hits:
    2,642

    11 Jul 2026