The Perfect Time ((Gaster!Sans X Abused!Reader))

5 years. 5 years it's been. 5 years since Frisk freed the monsters. 5 years since your mom left you. 5 years you've put up with your father.

5 years of suffering and anguish

5 years of torture and abuse, mentally and physically.

But that was gonna be stopped.

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Meet (Y/N), a abused runaway with an attitude that's bound to make some people pissed.

Well, that's kind of an understatement.

After her mom leaving and being beat by her dad, she decides to run away, and finds a completely different world. One that makes her struggle to survive. How could she possibly make it?

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Meet sans, the laid back, lazy, and funny skeleton monster from the underground.

At least, that's what he used to be.

Now, he's known as Gaster Sans. He's still funny, but in a different way. All the laziness is gone. He's charming, clever, and quick. Ever since he combined souls with Gaster, his personality and appearance completely change. Will he ever feel the same, normal, again?