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This work could have adult content. If you continue, you have agreed that you are willing to see such content.
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Until Eternity by Fells_Kitten (SquirrleyCow)
Fandoms: Undertale (Video Game), Underfell - Fandom
20 Jul 2025
Tags
Summary
Sans secretly thinks he's cursed. Everyone he gets close to other than his family disappears or dies. He tries to keep to himself after tragedy hit far too close over a decade ago. However, fate seems to have either a very cruel sense of humor or other plans in store when he bumps into Grillby.
Grillby feels as cursed as Sans, but he knows the cause of all his pain. He struggles to maintain life between the inevitable lows until the skeleton sets their paths toward an unknowable outcome.
They hold on to each other as their lives; their pasts and future, all entwine in a plot thick with deceit, abuse, and the criminal underworld.
****minor edits from Chapter One to Chapter Seven happening as some very minor details have been retconned in the past two years. if it's a more important detail i'll leave a note of the edit in the notes of the chapter. this will be removed once the edits are done.****
*i also apologize for adding/changing tags that i genuinely forgot about or didn't realize were going to be later in the story. *