[Sans AU x Reader] The world is a cruel place. Darkness covered the world. Everything is cold and cruel. But in that darkness, there's a beam of light that shines over. The light that could stop wars. The light that filled the cold world with warmth. That light... Was you... (DISCLAIMER: I do not own Undertale or it's AU. The only AU I own is Retoldtale. Please do not copy my story as it is my original idea. I copied this from my Quotev account so don't assume I stole this.)