Perhaps a little cringey to write Sans x Reader's in 2023, but y'know what? It makes me happy, so I am going to do this.
Life hadn't been easy for you or your little sibling, Frisk, your parents were either busy working or at a friend's house getting high off God knows what. After a particularly bad incident when you were 16, you took Frisk and began living in a small cabin in the mountains, sure you didn't have electricity, or heat, or running water, but surely it was better than living with those deadbeats right?
That's what you thought, until Frisk went missing.