You're walking on the sidewalk in your AU. It was a pretty positive one so you were doing great today! That was until you walked passed an alleyway...

The inside of the alleyway felt.. miserable. It also had purple smoke exiting it. Curious, you entered the secluded area and found a skeleton that looked like Sans smoking. The skeleton spotted you and he quickly diminished his cigarette with his hand.

"...Who might you be?"