Prolouge

"Welcome to the underground." Sans said with a harsh smile. His gold tooth glinted like the sun, reflecting off his sweat, making it seem as if he was sweating gold. I felt Flowey's vines tighten. Sans chuckled. "You won't make it very far."

Credit, of course, to Toby Fox and his colleagues. Underfell is not my original AU, credit to the creators.