Replying...
Intro. You're frisk, you and flowey are walking in the snow trying to find your way home but you came across a blizzard and ran after the blizzard you kept walking until sans appears behind you making a joke by then you didn't fall for it and continued walking until he turned you around "Rude ." He said "don't ya know how to greet a pal?" He said again. (That's it!)

Underfell sans

@Millie