Your name is Snow. You always thought Snow was an odd name for a mouse. Then again, you are tiny, and snowflakes are pretty tiny too. Actually, now that I think about it, it's fairly unusual for a mouse to have a name to begin with.
Anyways, you don't have many friends, and you have gotten considerably lonely. It saddens you greatly to have to walk the floor of the forest alone, so you've decided to set out on a quest for companionship.