You are trainer from Sinnoh who well got lost in the Sinnoh's snowy mountains you're pretty far from any poke center so you will have a hard time if you start to get hypothermia

as you keep walked you felt like somebody was looking at you which was weird because those mountains are lonely most of the time but you decide to turn around and...

Hm...? An trainer all alone uh? Well lucky for you human I ain't evil... Idk wanna go to my cave to rest a bit you look tired

it was an Weavile!