You ask sans what rachel's past was like he answered in a
sad way and said with tears that her past sad and miserable.

He said she came from a game where she was the bad
guy and she ran away from it all I know is that.

I found her in snowdin in a cardbord box with
a doll dress for a blanket so I took her to
my dad she told me all about her game
and how she ended up in snowdin.

That was all she told me.