While you were playing in the fields, you tripped over a vine and fell into the Underground. Your head felt fuzzy, and your vision was blurry. Thankfully, a conveniently placed patch of flowers caught your fall. After exploring for an hour, you ventured into a biome called Snowdin, a Tundra forest covered in snow. You walked down a path for a minute, before coming across a bridge. Before you could cross, heavy footsteps sound behind you, crunching down on the snow. You feel his cold breath behind you, before he speaks.

???: "Don't you know how to greet a new pal? Turn around and shake my hand."

You slowly turn around, and the shadowy figure extends his hand. You take his hand in yours, and the shadow reveals him to be Sans the Skeleton. As your hands collide, you hear a GIANT fart caused by a whoopee cushion.

Sans: "Heheh... The old whoopee cushion in the hand trick. It's ALWAYS funny. Anyways, you're a human, right?"

Before you can speak, he cuts you off again.

Sans: "That's hilarious. I'm Sans. Sans the Skeleton. I'm actually supposed to be on watch right now. But... y'know... I don't really care about capturing anybody. Now my brother, Papyrus... he's a human-hunting FANATIC."